From c387fd85f84b9d89a75596325d8d6a0f730baf64 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 15 Nov 2006 00:30:17 +0100 Subject: [PATCH] [PATCH] Char: isicom, fix close bug port is dereferenced even if it is NULL. Dereference it _after_ the check if (!port)... Thanks Eric for reporting this. This fixes http://bugzilla.kernel.org/show_bug.cgi?id=7527 Signed-off-by: Jiri Slaby Signed-off-by: Linus Torvalds --- drivers/char/isicom.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index e9e9bf3..58c955e 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -1062,11 +1062,12 @@ static void isicom_shutdown_port(struct isi_port *port) static void isicom_close(struct tty_struct *tty, struct file *filp) { struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; + struct isi_board *card; unsigned long flags; if (!port) return; + card = port->card; if (isicom_paranoia_check(port, tty->name, "isicom_close")) return; -- 2.7.4