commit f02dcdd1784d2b56ffa8c528248b60ef142e921d
author Juergen Lock <nox@jelal.kn-bremen.de> Fri Aug 16 15:00:24 2013 -0300
committer Mauro Carvalho Chehab <m.chehab@samsung.com> Fri Aug 23 05:41:23 2013 -0300
tree 3d9209cf417a8251e98fbb5729e5cc55f29605c4
parent 5be789fc84a752946f6bdf263b053ed7d4a12a1c

[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>

drivers/media/rc/rc-main.c

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index aa5d8e7..46da365 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -711,7 +711,7 @@
 		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 @@
 	if (rdev) {
 		mutex_lock(&rdev->lock);
 
-		 if (!--rdev->users)
+		 if (!--rdev->users && rdev->close != NULL)
 			rdev->close(rdev);
 
 		mutex_unlock(&rdev->lock);