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authorJuergen Lock <nox@jelal.kn-bremen.de>2013-08-16 20:00:24 +0200
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-08-23 10:41:23 +0200
commitf02dcdd1784d2b56ffa8c528248b60ef142e921d (patch)
tree3d9209cf417a8251e98fbb5729e5cc55f29605c4 /drivers/media
parent[media] marvell-ccic/mmp-driver.c: simplify use of devm_ioremap_resource (diff)
downloadlinux-f02dcdd1784d2b56ffa8c528248b60ef142e921d.tar.xz
linux-f02dcdd1784d2b56ffa8c528248b60ef142e921d.zip
[media] media: rc: rdev->open or rdev->close can be NULL
At least technisat-usb2.c doesn't set these... Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/rc/rc-main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index aa5d8e724622..46da365c9c84 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -711,7 +711,7 @@ int rc_open(struct rc_dev *rdev)
return -EINVAL;
mutex_lock(&rdev->lock);
- if (!rdev->users++)
+ if (!rdev->users++ && rdev->open != NULL)
rval = rdev->open(rdev);
if (rval)
@@ -735,7 +735,7 @@ void rc_close(struct rc_dev *rdev)
if (rdev) {
mutex_lock(&rdev->lock);
- if (!--rdev->users)
+ if (!--rdev->users && rdev->close != NULL)
rdev->close(rdev);
mutex_unlock(&rdev->lock);