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-rw-r--r--drivers/char/rocket.c3
1 files changed, 2 insertions, 1 deletions
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);