| Message ID | 1263122254-18781-1-git-send-email-jslaby@suse.cz |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Jiri Slaby <jslaby@suse.cz> Date: Sun, 10 Jan 2010 12:17:34 +0100 > 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 <jslaby@suse.cz> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 811984d..8b85d77 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);
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 <jslaby@suse.cz> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alan Cox <alan@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: netdev@vger.kernel.org --- net/irda/ircomm/ircomm_tty.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-)