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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 <arnd@arndb.de>
Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
Cc: linux-atm-general@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2014-02-26 12:01:51 +01:00 committed by David S. Miller
parent 53e0b080bc
commit c73b1f6a04
1 changed files with 2 additions and 2 deletions
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4
drivers/atm/firestream.c
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@ -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;