From 1e3e8d91fee56e1ab598b265466dc38033f1b915 Mon Sep 17 00:00:00 2001 From: Satyam Sharma Date: Sun, 15 Jul 2007 23:40:07 -0700 Subject: [PATCH] rocket.c: fix unchecked mutex_lock_interruptible() Check the return of mutex_lock_interruptible() in drivers/char/rocket.c and return ERESTARTSYS if we were interrupted. Signed-off-by: Satyam Sharma Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/rocket.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index a3fd7e7ba5a..0270080ff0c 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -1702,7 +1702,8 @@ static int rp_write(struct tty_struct *tty, if (count <= 0 || rocket_paranoia_check(info, "rp_write")) return 0; - mutex_lock_interruptible(&info->write_mtx); + if (mutex_lock_interruptible(&info->write_mtx)) + return -ERESTARTSYS; #ifdef ROCKET_DEBUG_WRITE printk(KERN_INFO "rp_write %d chars...", count); -- 2.20.1