tty: Fix leaks introduced by the shift to separate ldisc objects

Gold star for the kmemleak detector.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index 39c8f86dedd4..94b3e06d73ec 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -148,8 +148,10 @@ static struct tty_ldisc *tty_ldisc_try_get(int disc)
                 }
         }
         spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-        if (err)
+        if (err) {
+                kfree(ld);
                 return ERR_PTR(err);
+        }
         return ld;
 }
 
@@ -262,7 +264,7 @@ const struct file_operations tty_ldiscs_proc_fops = {
  *      @ld: line discipline
  *
  *      Install an instance of a line discipline into a tty structure. The
- *      ldisc must have a reference count above zero to ensure it remains/
+ *      ldisc must have a reference count above zero to ensure it remains.
  *      The tty instance refcount starts at zero.
  *
  *      Locking: