[PATCH 1/14] drivers/media/platform/soc_camera/soc_camera.c: fix error return code

From: Peter Senna Tschudin
Date: Thu Sep 06 2012 - 11:25:03 EST


From: Peter Senna Tschudin <peter.senna@xxxxxxxxx>

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}

// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>

---
drivers/media/platform/soc_camera/soc_camera.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 10b57f8..a4beb6c 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1184,7 +1184,8 @@ static int soc_camera_probe(struct soc_camera_device *icd)
sd->grp_id = soc_camera_grp_id(icd);
v4l2_set_subdev_hostdata(sd, icd);

- if (v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler))
+ ret = v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler);
+ if (ret)
goto ectrl;

/* At this point client .probe() should have run already */

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