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Commit 1e3e8d91 authored by Satyam Sharma's avatar Satyam Sharma Committed by Linus Torvalds
Browse files

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: default avatarSatyam Sharma <satyam.sharma@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 60bfba7e

drivers/char/rocket.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -1702,7 +1702,8 @@ static int rp_write(struct tty_struct *tty, 
	if (count <= 0 || rocket_paranoia_check(info, "rp_write"))

	if (count <= 0 || rocket_paranoia_check(info, "rp_write"))

		return 0;

		return 0;





	mutex_lock_interruptible(&info->write_mtx);

	if (mutex_lock_interruptible(&info->write_mtx))

		return -ERESTARTSYS;





#ifdef ROCKET_DEBUG_WRITE

#ifdef ROCKET_DEBUG_WRITE

	printk(KERN_INFO "rp_write %d chars...", count);

	printk(KERN_INFO "rp_write %d chars...", count);