rtc: don't return -EBUSY when mutex_lock_interruptible() fails
It was pointed out that the RTC framework handles its mutex locks oddly
... returning -EBUSY when interrupted. This fixes that by returning the
value of mutex_lock_interruptible() (i.e. -EINTR).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index 0a870b7..ae3bd4d 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -221,7 +221,7 @@
err = mutex_lock_interruptible(&rtc->ops_lock);
if (err)
- return -EBUSY;
+ return err;
/* check that the calling task has appropriate permissions
* for certain ioctls. doing this check here is useful