[PATCH] rtc: fix idr locking
authorSonny Rao <sonny@burdell.org>
Tue, 27 Jun 2006 09:54:06 +0000 (02:54 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 28 Jun 2006 00:32:40 +0000 (17:32 -0700)
We need to serialize access to the global rtc_idr even in this error path.

Signed-off-by: Sonny Rao <sonny@burdell.org>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/rtc/class.c

index 5396beec30d0ca62b3d97a0c73c0ac66cb8ceccc..1cb61a761cb284cc6dd590e6ebd8062f6271d246 100644 (file)
@@ -94,7 +94,9 @@ exit_kfree:
        kfree(rtc);
 
 exit_idr:
+       mutex_lock(&idr_lock);
        idr_remove(&rtc_idr, id);
+       mutex_unlock(&idr_lock);
 
 exit:
        dev_err(dev, "rtc core: unable to register %s, err = %d\n",