From: Arnd Bergmann Date: Wed, 26 Feb 2014 11:01:51 +0000 (+0100) Subject: atm: firestream: fix interruptible_sleep_on race X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c73b1f6a049d3dd0ba9d65da483483515282a5f0;p=openwrt%2Fstaging%2Fblogic.git atm: firestream: fix interruptible_sleep_on race interruptible_sleep_on is racy and going away. This replaces the one use in the firestream driver with the appropriate wait_event_interruptible variant. Signed-off-by: Arnd Bergmann Acked-by: Chas Williams Cc: linux-atm-general@lists.sourceforge.net Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller --- diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c index b41c9481b67b..f43e1c13b300 100644 --- a/drivers/atm/firestream.c +++ b/drivers/atm/firestream.c @@ -736,8 +736,8 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q) skb = td->skb; if (skb == FS_VCC (ATM_SKB(skb)->vcc)->last_skb) { - wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait); FS_VCC (ATM_SKB(skb)->vcc)->last_skb = NULL; + wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait); } td->dev->ntxpckts--; @@ -1123,7 +1123,7 @@ static void fs_close(struct atm_vcc *atm_vcc) this sleep_on, we'll lose any reference to these packets. Memory leak! On the other hand, it's awfully convenient that we can abort a "close" that is taking too long. Maybe just use non-interruptible sleep on? -- REW */ - interruptible_sleep_on (& vcc->close_wait); + wait_event_interruptible(vcc->close_wait, !vcc->last_skb); } txtp = &atm_vcc->qos.txtp;