From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sat, 18 Aug 2012 20:25:59 +0000 (-0300)
Subject: [media] m5mols: introduce missing initialization
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b25b895805dd415f218cfd4892d17aeb2db425f7;p=openwrt%2Fstaging%2Fblogic.git

[media] m5mols: introduce missing initialization

The result of one call to a function is tested, and then at the second call
to the same function, the previous result, and not the current result, is
tested again.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ret;
identifier f;
statement S1,S2;
@@

*ret = f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S1
... when any
*f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S2
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index ac7d28b6ddf2..0f521f57e8e5 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -937,7 +937,7 @@ static int __devinit m5mols_probe(struct i2c_client *client,
 	if (!ret)
 		ret = m5mols_init_controls(sd);
 
-	m5mols_sensor_power(info, false);
+	ret = m5mols_sensor_power(info, false);
 	if (!ret)
 		return 0;
 out_me: