From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Tue, 4 Mar 2008 22:28:26 +0000 (-0800)
Subject: specialix.c: fix possible double-unlock
X-Git-Tag: accepted/tizen/common/20141203.182822~24017
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=83c7c693ed3e61535ad6a097ad991a88aafc54b8;p=platform%2Fkernel%2Flinux-arm64.git

specialix.c: fix possible double-unlock

Noticed by sparse, trivial to see:
drivers/char/specialix.c:2112:3: warning: context imbalance in 'sx_throttle' - unexpected unlock

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index c0e08c7..5ff83df 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -2109,7 +2109,6 @@ static void sx_throttle(struct tty_struct * tty)
 	sx_out(bp, CD186x_CAR, port_No(port));
 	spin_unlock_irqrestore(&bp->lock, flags);
 	if (I_IXOFF(tty)) {
-		spin_unlock_irqrestore(&bp->lock, flags);
 		sx_wait_CCR(bp);
 		spin_lock_irqsave(&bp->lock, flags);
 		sx_out(bp, CD186x_CCR, CCR_SSCH2);