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[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>
hifive-unleashed-5.1
Juergen Lock 2013-08-16 15:00:24 -03:00 committed by Mauro Carvalho Chehab
parent 5be789fc84
commit f02dcdd178
1 changed files with 2 additions and 2 deletions
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4
drivers/media/rc/rc-main.c
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@ -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);