diff options
| author | Karsten Keil <keil@b1-systems.de> | 2012-09-13 08:36:20 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-13 22:58:54 +0400 |
| commit | 4b921eda53366b319602351ff4d7256fafa4bd1b (patch) | |
| tree | a60091cf40391abd4eb1452dc840289bd05bfd19 /drivers/isdn/mISDN | |
| parent | 930521695c183c8a4da8fe13ce231cf5263b8d98 (diff) | |
| download | linux-4b921eda53366b319602351ff4d7256fafa4bd1b.tar.xz | |
mISDN: Fix wrong usage of flush_work_sync while holding locks
It is a bad idea to hold a spinlock and call flush_work_sync.
Move the workqueue cleanup outside the spinlock and use cancel_work_sync,
on closing the channel this seems to be the more correct function.
Remove the never used and constant return value of mISDN_freebchannel.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Cc: <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/mISDN')
| -rw-r--r-- | drivers/isdn/mISDN/hwchannel.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c index ef34fd40867c..2602be23f341 100644 --- a/drivers/isdn/mISDN/hwchannel.c +++ b/drivers/isdn/mISDN/hwchannel.c @@ -148,17 +148,16 @@ mISDN_clear_bchannel(struct bchannel *ch) ch->next_minlen = ch->init_minlen; ch->maxlen = ch->init_maxlen; ch->next_maxlen = ch->init_maxlen; + skb_queue_purge(&ch->rqueue); + ch->rcount = 0; } EXPORT_SYMBOL(mISDN_clear_bchannel); -int +void mISDN_freebchannel(struct bchannel *ch) { + cancel_work_sync(&ch->workq); mISDN_clear_bchannel(ch); - skb_queue_purge(&ch->rqueue); - ch->rcount = 0; - flush_work_sync(&ch->workq); - return 0; } EXPORT_SYMBOL(mISDN_freebchannel); |