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V4L/DVB (13954): Correct NULL test

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Test the just-allocated value for NULL rather than some other value.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f;
@@

f(...) { <+... return NULL; ...+> }

@@
expression *x;
expression y;
identifier r.f;
statement S;
@@

x = f(...);
(
if ((x) == NULL) S
|
if (
-   y
+   x
       == NULL)
 S
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Julia Lawall 2009-12-28 11:09:55 -03:00 committed by Mauro Carvalho Chehab
parent b2ad41f9ef
commit 3557aa4f7d
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/usbvision/usbvision-video.c
View File

@ -1487,7 +1487,7 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
usbvision->vbi = usbvision_vdev_init(usbvision,
&usbvision_vbi_template,
"USBVision VBI");
if (usbvision->vdev == NULL) {
if (usbvision->vbi == NULL) {
goto err_exit;
}
if (video_register_device(usbvision->vbi,