NULL noise in drivers/net

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 803a3bdea0af..cfcd15af501e 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -821,7 +821,7 @@ static void mkiss_close(struct tty_struct *tty)
         tty->disc_data = NULL;
         write_unlock(&disc_data_lock);
 
-        if (ax == 0)
+        if (!ax)
                 return;
 
         /*