From c026ca581f22497c42cbe7a2004fa0d5f1bd6c42 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Sun, 10 Jan 2010 01:17:34 +0000 Subject: [PATCH] NET: irda, remove unnecessary checks Stanse found a potential null dereference in ircomm_tty_close and ircomm_tty_hangup. There is a check for tty being NULL, but it is dereferenced earlier. But it is bogus, the tty cannot be NULL, so remove the !tty checks. Signed-off-by: Jiri Slaby Cc: Samuel Ortiz Cc: "David S. Miller" Cc: Alan Cox Cc: Greg Kroah-Hartman Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller --- net/irda/ircomm/ircomm_tty.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 811984d9324b..8b85d774e47f 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -496,9 +496,6 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp) IRDA_DEBUG(0, "%s()\n", __func__ ); - if (!tty) - return; - IRDA_ASSERT(self != NULL, return;); IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;); @@ -1007,9 +1004,6 @@ static void ircomm_tty_hangup(struct tty_struct *tty) IRDA_ASSERT(self != NULL, return;); IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;); - if (!tty) - return; - /* ircomm_tty_flush_buffer(tty); */ ircomm_tty_shutdown(self); -- 2.20.1