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(parent: 4008e97) | patch
mISDN: fix race in timer canceling on module unloading
authorKonstantin Khlebnikov <khlebnikov@openvz.org>
Fri, 14 Dec 2012 01:02:36 +0000 (01:02 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 14 Dec 2012 18:14:07 +0000 (13:14 -0500)
commit4a0ae7b0a9e55db9b85f8abda623f145311eb951
tree506c5e09cc6d86e7a7a644b72db3e98c58fe84b9tree | snapshot (tar.gz zip)
parent4008e97f866db66511f065ae9052e0733a3a8429commit | diff
mISDN: fix race in timer canceling on module unloading

Using timer_pending() without additional syncronization is racy,
del_timer_sync() must be used here for waiting in-flight handler.
Bug caught with help from "debug-objects" during random insmod/rmmod.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/mISDN/dsp_core.c diff | blob | blame | history