[PATCH 2/3] drivers/media/rc/ati_remote.c: fix error return code

From: Peter Senna Tschudin
Date: Tue Sep 04 2012 - 08:05:27 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/rc/ati_remote.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c
index 08aede5..49bb356 100644
--- a/drivers/media/rc/ati_remote.c
+++ b/drivers/media/rc/ati_remote.c
@@ -937,8 +937,10 @@ static int ati_remote_probe(struct usb_interface *interface,
/* Set up and register mouse input device */
if (mouse) {
input_dev = input_allocate_device();
- if (!input_dev)
+ if (!input_dev) {
+ err = -ENOMEM;
goto fail4;
+ }

ati_remote->idev = input_dev;
ati_remote_input_init(ati_remote);

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