staging: erofs: fix error handling when failed to read compresssed data

Complete read error handling paths for all three kinds of
compressed pages:

 1) For cache-managed pages, PG_uptodate will be checked since
    read_endio will unlock and SetPageUptodate for these pages;

 2) For inplaced pages, read_endio cannot SetPageUptodate directly
    since it should be used to mark the final decompressed data,
    PG_error will be set with page locked for IO error instead;

 3) For staging pages, PG_error is used, which is similar to
    what we do for inplaced pages.

Fixes: 3883a79abd02 ("staging: erofs: introduce VLE decompression support")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: Prefer using the BIT macro

Challenge suggested by coccinelle.

Replace bit shifting on 1 with the BIT(x) macro.
Coccinelle script:

@@
constant c;
@@

-(1 << c)
+BIT(c)

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: Fix indentation and spacing issues

Replaced spaces with tabs at the beginning of lines.
Added spaces around a (+) operator.

Signed-off-by: Sammy Abed <abdlwahdsa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ralink-gdma: ralink-gdma.c fixed line width

Fix checkpatch issue:
line over 80 characters

Signed-off-by: Dominik Adamski <adamski.dominik@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: cleanup long line in odm.c

Align a comment to clear a line over 80 characters
checkpatch warning.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: pi433: remove unnecessary calling rf69_set_mode()

Remove unnecessary rf69_set_mode() function call when rx is waiting for
a telegram. There is waste to call rf69_set_mode() twice for becoming
standby mode.

Signed-off-by: Sidong Yang <realwakka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ralink-gdma: Remove space after cast

This fixes the checkpatch.pl check: "No space is necessary after the
cast".

Signed-off-by: Bharath Vedartham <linux.bhar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: ralink-gdma: Change unsigned to unsigned int

This fixes the checkpatch.pl warning: "Prefer unsigned to unsigned int"

Signed-off-by: Bharath Vedartham <linux.bhar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: tegra-vde: remove unnecessary boilerplate license identifier text

Remove unnecessary boilerplate license identifier text.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: tegra-vde: Add SPDX GPL-2.0+ license identifier to fix checkpatch warning

Add the SPDX GPL-2.0+ license identifier to fix checkpatch.pl warning
"WARNING: Missing or malformed SPDX-License-Identifier tag in line 1"

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: media: davinci_vpfe: Drop macros

Drop macros instead use functions set_bit() and clear_bit directly.

Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: media: davinci_vpfe: Fix preferred form of passing a size

Fix preferred form of passing a size of a struct to improve readability
and eradicate an opportunity for a bug when the pointer variable type is
changed but the corresponding sizeof that is passed to a memory
allocator is not.

Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: media: zoran: Use unsigned int instead of unsigned

Replace 'unsigned' with 'unsigned int' to get rid of checkpatch warning

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: media: imx: mipi-csi2: Remove unnecessary error messages

The function devm_ioremap already prints error message  when there
is no enough memory.
Remove print statements that give error messages
Issue found using coccinelle
The following semantic patch is used to solve this:

<smpl>
@@
expression x;
constant char[] C;
identifier f;
@@

x = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

if(x==NULL)
{
...
(
-f(C,...);
|
-f(...,C);
)
...
}
</smpl>

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: lines should not end with a parentheses

Adjust code to fix the style issue-lines should not end with a
parentheses

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Modify comment style of SPDX License Identifier

Fix the comment style of SPDX license identifier based on header file
type

Signed-off-by: Ganesh Biradar <grbesd1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rts5208: correction in spelling

Correct misspelled word.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: Fix identation issue

Corrected the identation of switch case to get rid of checkpatch error

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: Fix a space issue

Replace 'foo * bar' with 'foo *bar' to fix a checkpatch warning

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: Fix spelling mistake

Replace negoitation with negotiation to get rid of checkpatch warning.

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove function rtw_alloc_network()

Remove function rtw_alloc_network() as all it does is call
_rtw_alloc_network().
Rename _rtw_alloc_network() to rtw_alloc_network().
Change references to _rtw_alloc_network() to refer to
rtw_alloc_network().
Issue first noticed while using Coccinelle and ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Remove parentheses

Remove unnecessary parentheses around variables. Issue found with
Checkpatch.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Change datatype from sint to int

Change datatype of local variable from sint to int.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging; rtl8723bs: Remove unnecessary function rtw_init_mlme_priv()

Remove function rtw_init_mlme_priv() as all it does is call
_rtw_init_mlme_priv().
Change the name of _rtw_init_mlme_priv() to rtw_init_mlme_priv() and its
return type to int.
Remove references to _rtw_init_mlme_priv() from the corresponding header
file.
Suggestion to delete return variable from rtw_init_mlme_priv() put forward
by Coccinelle using ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Check for nonzero number of scatterlist entries

The buffer descriptor setup loop is correct only if it is setting up at
least one bd struct.  Besides, there is an error if dma_map_sg() returns
0, which is possible and must be handled.

Additionally, remove the BUG_ON() checking sglen, which is unnecessary
because we configure DMA with that constraint during init.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Fix warning when reloading module with debug msgs enabled

The kernel complained:

    [  510.277151] WARNING: CPU: 0 PID: 395 at fs/proc/generic.c:360 proc_register+0xf0/0x108
    [  510.292891] proc_dir_entry '/proc/msdc_debug' already registered

when doing a modprobe/rmmod/modprobe of this module if debug messages
are compiled in.  Fix this by removing the proc entry when the module is
unloaded.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: erofs: Use !x or x in place of NULL comparision

Test for NULL as !x instead of NULL comparisions.
Issue found using coccinelle
Semantic patch used to solve the problem is as follows

// <smpl>
@@
expression x;
statement S;
@@

x = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

-if(x==NULL)
+if(!x)
S

@@
expression e;
@@

-e == NULL
+!e
// </smpl>

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
[ Gao Xiang: fix x != NULL comparision to x as well. ]
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unnecessary parentheses

Remove unnecessary parentheses in rtl8188eu_xmit.c.
Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Remove return variables in rtw_mlme_ext.c

Remove unnecessary local return variables in rtw_mlme_ext.c. Issue found
with Coccinelle using ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Change NULL comparisons to Boolean negation

Change NULL comparisons to Boolean negations. Issue found with
Coccinelle using matchnull.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: Remove return variables from wilc_spi.c

Remove return variables from wilc_spi.c. Issue found with Coccinelle
using ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: Remove return variable from host_interface.c

Remove return variable from host_interface.c. Issue found with
Coccinelle using ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Add spaces around operator

Add spaces around '-' operator to get rid of checkpatch warning.

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: pi433: remove empty space to fix line over 80 characters warning

Remove empty space to solve checkpatch.pl warning:
"WARNING: line over 80 characters".

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: gdm724x: Remove unnecessary print statements

Remove print statements that provide information about error messages
when memory allocation is failed.
Issue found using coccinelle
The following semantic patch is used to solve this:

<smpl>
@@
expression x;
constant char[] C;
identifier f;
@@

x = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

if(x==NULL)
{
...
(
-f(C,...);
|
-f(...,C);
)
...
}
</smpl>

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: comedi: ni_mio_common.c: Added blank line after declarations

Added blank line after declarations.

Signed-off-by: Arash Fotouhi <arash@arashfotouhi.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: remove typedef for struct pno_scan_info

Remove typedef for struct pno_scan_info as The Linux kernel coding style
guidelines discourage the use of typedefs for struct types.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: remove typedef for struct pno_scan_channel_info

Remove typedef for struct pno_scan_channel_info as The Linux kernel
coding style guidelines discourage the use of typedefs for struct
types.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: remove typedef for struct pno_ssid_list

Remove typedef from struct pno_ssid_list as The Linux kernel coding
style guidelines discourage the use of typedefs for struct types.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: remove typedef for struct pno_ssid

Remove typedef for struct pno_ssid as The Linux kernel coding style
guidelines discourage the use of typedefs for struct types.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: include: remove typedef for struct pno_nlo_info

Remove typedef for struct pno_nlo_info as the Linux kernel coding style
guidelines discourage the use of typedefs for struct types.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Change NULL comparison to Boolean negation

Change NULL comparison to Boolean negation. Issue found with Coccinelle
using matchnull.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: rtl8712_led.c: remove blank line

To avoid style issues, remove multiple blank lines.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: rtl8712_led.c: alignment should match open parenthesis

Align code to the open parenthesis to fix the alignment issue.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: rtl8712_led.c: remove unnecessary parentheses

Fix unnecessary parentheses issue.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: rtl8712_efuse.h: alignment should match open parenthesis

Align code to the open parenthesis to fix the alignment issue.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: rtl8712_efuse.h: remove blank line

To avoid style issues, remove multiple blank lines.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: alignment should match open parenthesis

Align code to the open parenthesis to fix the alignment issue.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8712: remove blank line

To avoid style issues, remove multiple blank lines.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: media: Use !x in place of NULL comparision

Test for NULL as !x instead of NULL comparisions for
functions that return NULL on failure.
Issue found using coccinelle
Semantic patch used to solve the problem is as follows

// <smpl>
@@
expression x;
statement S;
@@

x = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

-if(x==NULL)
+if(!x)
// </smpl>

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: netlogic: Remove unnecessary error print

Kmalloc normally produces a backtrace when there is not enough memory.
So it is unnecessary to print an error message that provides only this
information. Hence, remove pr_error() from memory allocation check.
Issue found using Coccinelle.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: lines should not end with a parenthesis

Adjust code to fix the style issue – lines should not end with a
parenthesis.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: correction in spelling

Correct misspelled word.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: kconfig: use help over --help--

use help over --help-- for new help text

Signed-off-by: Anushka Shukla <anushkacharu9@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: core: Add spaces around operators

Add spaces around '+' operator to get rid of checkpatch warning.

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: core: Remove unnecessary parentheses

Remove unnecessary parentheses after 'address-of' operator
Issue found with checkpatch.pl

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: core: rtw_mlme: Remove return variables.

The last two lines in the function could
be compressed into one. Avoid usage of local variable.
Issue found with Coccinelle using ret.cocci.

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: emxx_udc: lines should not end with parenthesis

Adjust code to meet the style of “lines should not end with
parenthesis”.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: sdio.c: Remove unncessary paranthesis.

Challenge suggested by coccinelle.
Remove unnecessary parathesis around the right hand of
assignment using the below script.

@@
binary operator op = {==,!=,&&,||,>=,<=,&,|};
expression l, r, t;
@@

(
l = (r op t)
|
l =
-(
r
-)
)

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: erofs: Replace NULL comparisons

Replace all NULL comparisons in the file to get rid of checkpatch
warnings

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: gdm724x: Rename dftEpsId to dft_eps_id

Rename member element dftEpsId to dft_eps_id to avoid camelcase.
checkpatch warning: Avoid CamelCase.

Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: rtl8723bs: Change return type and type of local variable

rtw_startbss_cmd can return the result of calling rtw_enqueue_cmd, which
can return the result of calling _rtw_enqueue_cmd, but they all have
different return types (u8, u32, and sint, respectively).

As all of these functions return error codes, change all the return types
to int, in preparation for converting these functions to use standard
kernel error codes.

Also, remove extern from the function declaration to maintain Linux kernel
coding style.

Issue suggested by Coccinelle.

Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: refactor recvframe_defrag()

Local variables pfhdr and prframe always have a same value,
so one of them is unnecessary.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wlan-ng: Correct typo in comment message

Add space between two words for better readability in the
comments.

Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wlan-ng: malformed SPDX-License-Identifier

Correct malformed SPDX-License-Identifier so that it
matches Linux kernel comment coding style.

Signed-off-by: Branden Bonaby <brandonbonaby94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-spi: Remove references to nonexistent mt7621_spi_ops

This struct does not exist, and when it is looked up in the
compatibility tree, it returns null.  Remove these nonfunctional lines.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: core: rtw_recv.c: Modify return type suggested by Coccinelle.

The last two lines in the function could
be compressed into one. Avoid usage of local variable.

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: r8192U_dm: Remove unnecessary comments.

Remove comments which are not necessary.

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: netlogic: replace skb_put/pull pair with skb_reserve

The sequence

    skb_put(skb);
    skb_pull(skb);

leads to the same result as

    skb_reserve(skb);

but second is a little shorter and clearer.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: ieee80211: ieee80211_rx.c: Remove unnecessary braces.

Remove braces around single statement block.
Issue found by checkpatch.pl

WARNING: braces {} are not necessary for a single statement block

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: remove unused WFD defines

All defined WFD* in wifi.h are unused in the driver code,
so remove them.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: unisys: Correct malformed SPDX-License-Identifier

Correct SPDX-License-Identifier comment characters to silence
checkpatch.pl warning:
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1

Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_mio_common: use insn->n in ni_m_series_eeprom_insn_read()

The `insn_read` handler for the EEPROM subdevice on M-series boards
(`ni_m_series_eeprom_insn_read()`) currently ignores `insn->n` (the
number of samples to read) and assumes a single sample is to be read
into `data[0]`.  Fortunately, the Comedi core ensures that `data[]` has
a length of at least 16 so there is no problem with array bounds.

The usual Comedi convention for `insn_read` handlers is to read the same
channel `insn->n` times into successive elements of `data[]` so let's do
that.  (Each channel corresponds to a single EEPROM address.)  In this
case, the data value comes from a local copy of the EEPROM contents.

Also, follow the usual Comedi convention and return `insn->n` from the
handler to indicate success (although any non-negative value will do).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_mio_common: use insn->n in ni_eeprom_insn_read()

The `insn_read` handler for the EEPROM subdevice on E-series boards
(`ni_eeprom_insn_read()`) currently ignores `insn->n` (the number of
samples to read) and assumes a single sample is to be read into
`data[0]`.  Fortunately, the Comedi core ensures that `data[]` has a
length of at least 16 so there is no problem with array bounds.

The usual Comedi convention for `insn_read` handlers is to read the same
channel `insn->n` times into successive elements of `data[]` so let's do
that.  (Each channel number corresponds to a single EEPROM address.)
Since we do not expect the EEPROM data at a particular address to change
between readings, let's just read it once and copy the value `insn->n`
times.

Also, follow the usual Comedi convention and return `insn->n` from the
handler to indicate success (although any non-negative value will do).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_mio_common: use insn->n in ni_calib_insn_read()

The `insn_read` handler for the calibration subdevice
(`ni_calib_insn_read()`) currently ignores `insn->n` (the number of
samples to read) and assumes a single sample is to be read into
`data[0]`.  Fortunately, the Comedi core ensures that `data[]` has a
length of at least 16, so there is no problem with array bounds.

The usual Comedi convention for `insn_read` handlers is to read the same
channel `insn->n` times into successive elements of `data[]`, so let's
do that.

Also, follow the usual Comedi convention and return `insn->n` from the
handler to indicate success (although any non-negative value will do).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_mio_common: Use insn->n in ni_calib_insn_write()

The `insn_write` handler for the calibration subdevice
(`ni_calib_insn_write()`) currently ignores `insn->n` (the number of
samples to write) and assumes a single sample is to be written, but
`insn->n` could be 0, meaning no samples should be written, in which
case `data[0]` is invalid.

Change `ni_calib_insn_write()` to only write to the calibration device
if `insn->n > 0`.  There isn't much point writing all the values when
`insn->n > 1`, so just write the last one (`data[insn->n - 1]`).

Also follow the usual Comedi convention and return `insn->n` from the
handler to indicate success (although any non-negative return value will
do as far as the Comedi core is concerned).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Only unmap_sg if mapped

A failure while processing the start command could cause dma_unmap_sg()
to be called without first calling dma_map_sg().

Since calling dma_unmap_sg() is only needed when data != NULL, move the
unmap call into the corresponding if {} block.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Fix BRUST -> BURST typo

Obvious typo.  It is specified as BURST in the datasheet.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Immediately notify mmc layer of card change detection

There is no need to delay notifying the mmc layer.  Schedule the delayed
work to run immediately.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Remove redundant host->mmc->f_max write

This is set once during initialization and never changed.  Don't bother
setting it again in the interrupt handler.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Bill the caller for I/O time

When waiting on completions, use the _io variant so the caller is
charged as using I/O.

This should have no effect on the module's functionality, only improve
CPU accounting.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Use pinctrl subsystem to select SDXC pin mode

The driver previously grabbed the SD pins for itself, ignoring the pin
controller.  Remove this, and allow the pinctrl subsystem to set up the
pins using the device tree mappings.  This allows this driver to work on
related devices that have a different pin controller mapping, such as
the MT7688.  The hardcoded bit index was incorrect on that device.

The driver now needs a pin controller reference in its device tree node:

sdhci: /* ... */ {
compatible = "ralink,mt7620-sdhci";

pinctrl-names = "default";
pinctrl-0 = <&sdhci_pins>;

// ...
};

This change could break SD controller functionality on existing devices
whose device trees do not specify a pin controller and state for the SD
node.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: Remove obsolete comments and variables

These comments don't contain useful code or alternate implementation
ideas.  Remove them.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-mmc: fix unused variable compiler warning

The compiler complains:

    drivers/staging/mt7621-mmc/dbg.c: In function ‘msdc_debug_proc_write’:
    drivers/staging/mt7621-mmc/dbg.c:237:12: warning: unused variable ‘size’ [-Wunused-variable]
      int mode, size;
                ^~~~
    drivers/staging/mt7621-mmc/dbg.c:237:6: warning: unused variable ‘mode’ [-Wunused-variable]
      int mode, size;
          ^~~~

Remove these declarations.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fsl-dpaa2: ethsw: Remove return variable

Remove return variable and return return value directly. Issue found by
Coccinelle using ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: unisys: visorhba: Replace '--help--' with 'help' in Kconfig

Replace '--help--' in Kconfig and indent the subsequent text to silence
checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts

Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: unisys: visorinput: Replace '--help--' with 'help' in Kconfig

Replace '--help--' in Kconfig and indent the subsequent text to silence
checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts

Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: unisys: visornic: Replace '--help--' with 'help' in Kconfig

Replace '--help--' in Kconfig and indent the subsequent text to silence
checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts

Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: Eliminate camel case

Edit CamelCase function name
Issue found by checkpatch.pl

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: ieee80211: ieee80211_tx.c: Adjust space around else.

Fix the spacce around else.
Issue found by checkpatch.pl

ERROR: spaces required before that open brace '{'
ERROR: spaces required before that close brace '}'

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: ieee80211: ieee80211_rx.c: Fix NULL comparisions.

Replace NULL comparisons in the file.
Issue found by checkpatch.pl

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: r8192U_dm: Remove unnecessary blank lines.

Remove unnecessary blank lines.
Issue found by checkpatch.pl

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: r8192U_dm: Fix space issue around operators.

Add spaces around the operators.
Issue found by checkpatch.pl

CHECK: spaces preferred around that '+'
CHECK: spaces preferred around that '*'

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192u: r8192U_dm: Fix alignment issue.

Ajdust alignment to match open paranthesis.
Issue found by checkpatch.pl

CHECK: Alignment should match open paranthesis.

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: gasket: Remove return variable

Remove return variable and return the return value directly. Issue
suggested by ret.cocci.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: Remove parentheses around variable

Remove parentheses around variable.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: erofs: fix parenthesis alignment

Fix all checkpatch issues: "CHECK: Alignment should match open parenthesis"

Signed-off-by: Julian Merida <julianmr97@gmail.com>
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fbtft: ternary statement to if statement.

Convert a ternary statement into a if statement which is detected while
resolving "WARNING: line over 80 characters". Use BIT() macro instead
manually left shifting.

Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-pci-phy: Add Spaces to Macro Definition

Improve Code readability by adding Tabs and Spaces after #define

Signed-off-by: Emanuel Bennici <benniciemanuel78@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: rtl8192u: r8180_93cx6.c: Fix space around '<<'.

Fix the check as per Linux kernel style for use of spaces.
Issue found by checkpatch.pl

CHECK:spaces preffered around that '<<'

Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>