The patch titled
drivers/media/common: Add missing video_device_release
has been removed from the -mm tree. Its filename was
drivers-media-common-add-missing-video_device_release.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/media/common: Add missing video_device_release
From: Julia Lawall <julia@xxxxxxx>
Video_device_alloc returns the result of a kzalloc. In this case, the
value is stored in a local variable which is not copied elsewhere before
the point of the error return (video_register_device does not save its
first argument anywhere if it returns a negative value). Thus, a
video_device_release it needed before the error return.
The problem was found using the following semantic match.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type T,T1,T2;
identifier E;
statement S;
expression x1,x2,x3;
int ret;
@@
T E;
...
* E = video_device_alloc(...);
if (E == NULL) S
... when != video_device_release(...,(T1)E,...)
when != if (E != NULL) { ... video_device_release(...,(T1)E,...); ...}
when != x1 = (T1)E
when != E = x3;
when any
if (...) {
... when != video_device_release(...,(T2)E,...)
when != if (E != NULL) { ... video_device_release(...,(T2)E,...); ...}
when != x2 = (T2)E
(
* return;
|
* return ret;
)
}
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/media/common/saa7146_fops.c | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/media/common/saa7146_fops.c~drivers-media-common-add-missing-video_device_release drivers/media/common/saa7146_fops.c
--- a/drivers/media/common/saa7146_fops.c~drivers-media-common-add-missing-video_device_release
+++ a/drivers/media/common/saa7146_fops.c
@@ -538,6 +538,7 @@ int saa7146_register_device(struct video
// fixme: -1 should be an insmod parameter *for the extension* (like "video_nr");
if (video_register_device(vfd, type, -1) < 0) {
ERR(("cannot register v4l2 device. skipping.\n"));
+ video_device_release(vfd);
return -1;
}
_
Patches currently in -mm which might be from julia@xxxxxxx are
git-alsa.patch
git-agpgart.patch
drivers-cpufreq-add-calls-to-cpufreq_cpu_put.patch
git-powerpc.patch
arch-powerpc-platforms-pseries-add-missing-of_node_put.patch
arch-powerpc-sysdev-add-missing-of_node_put.patch
arch-powerpc-platforms-82xx-add-missing-of_node_put.patch
git-dvb.patch
git-input.patch
git-mtd.patch
git-net.patch
drivers-pcmcia-add-missing-iounmap.patch
drivers-pcmcia-add-missing-pci_dev_get.patch
git-x86.patch
arch-cris-added-a-missing-iounmap.patch
drivers-video-remove-unnecessary-pci_dev_put.patch
drivers-video-add-missing-pci_dev_get.patch
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