From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Wed, 12 Sep 2012 11:55:58 +0000 (-0300)
Subject: [media] drivers/media/platform/davinci/vpbe.c: Removes useless kfree()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0ae13e9e673786985b6910d5a051bc7cea038ea6;p=openwrt%2Fstaging%2Fblogic.git

[media] drivers/media/platform/davinci/vpbe.c: Removes useless kfree()

Remove useless kfree() and clean up code related to the removal.
The semantic patch that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
position p1,p2;
expression x;
@@
if (x@p1 == NULL) { ... kfree@p2(x); ... return ...; }
@unchanged exists@
position r.p1,r.p2;
expression e <= r.x,x,e1;
iterator I;
statement S;
@@
if (x@p1 == NULL) { ... when != I(x,...) S
                        when != e = e1
                        when != e += e1
                        when != e -= e1
                        when != ++e
                        when != --e
                        when != e++
                        when != e--
                        when != &e
   kfree@p2(x); ... return ...; }
@ok depends on unchanged exists@
position any r.p1;
position r.p2;
expression x;
@@
... when != true x@p1 == NULL
kfree@p2(x);
@depends on !ok && unchanged@
position r.p2;
expression x;
@@
*kfree@p2(x);
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c
index 9b623bc0a744..953cf8ca3a95 100644
--- a/drivers/media/platform/davinci/vpbe.c
+++ b/drivers/media/platform/davinci/vpbe.c
@@ -755,7 +755,6 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev)
 	return 0;
 
 vpbe_fail_amp_register:
-	kfree(vpbe_dev->amp);
 vpbe_fail_sd_register:
 	kfree(vpbe_dev->encoders);
 vpbe_fail_v4l2_device: