From: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date: Tue, 22 Mar 2016 14:59:13 +0000 (+0530)
Subject: staging: rtl8712: mlme_linux: Clean up tests if NULL returned on failure
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4d97b691475060ea6e1345ea7a7c2cba4658a631;p=openwrt%2Fstaging%2Fblogic.git

staging: rtl8712: mlme_linux: Clean up tests if NULL returned on failure

Some functions like kzalloc return NULL on failure.
When NULL represents failure, !x is commonly used.

This was done using Coccinelle:

@@
expression *e;
identifier l1;
@@

e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...);
...
- e == NULL
+ !e

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
index e4e4bdee78be..af7c4a47738a 100644
--- a/drivers/staging/rtl8712/mlme_linux.c
+++ b/drivers/staging/rtl8712/mlme_linux.c
@@ -153,7 +153,7 @@ void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
 	buff = NULL;
 	if (authmode == _WPA_IE_ID_) {
 		buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
-		if (buff == NULL)
+		if (!buff)
 			return;
 		p = buff;
 		p += sprintf(p, "ASSOCINFO(ReqIEs=");