[ 05/37] media: dvb-core: Release semaphore on error path dvb_register_device()

From: Greg Kroah-Hartman
Date: Tue Jul 17 2012 - 20:11:51 EST

From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>

3.4-stable review patch. If anyone has any objections, please let me know.


From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>

commit 82163edcdfa4eb3d74516cc8e9f38dd3d039b67d upstream.

There is a missing "up_write()" here. Semaphore should be released
before returning error value.

Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/media/dvb/dvb-core/dvbdev.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -243,6 +243,7 @@ int dvb_register_device(struct dvb_adapt
if (minor == MAX_DVB_MINORS) {
+ up_write(&minor_rwsem);
return -EINVAL;

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