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rtc: don't return -EBUSY when mutex_lock_interruptible() fails

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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>
This commit is contained in:
David Brownell 2008-07-29 22:33:30 -07:00 • committed by Linus Torvalds
parent 950d442ad0
commit b68bb26324
2 changed files with 6 additions and 6 deletions
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2
drivers/rtc/rtc-dev.c
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@ -221,7 +221,7 @@ static long rtc_dev_ioctl(struct file *file,
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