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[PATCH] Char: isicom, fix close bug

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port is dereferenced even if it is NULL.  Dereference it _after_ the
check if (!port)...  Thanks Eric <ef87@yahoo.com> for reporting this.

This fixes

	http://bugzilla.kernel.org/show_bug.cgi?id=7527

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jiri Slaby 2006-11-15 00:30:17 +01:00 committed by Linus Torvalds
parent f5ad1a785f
commit c387fd85f8
1 changed files with 2 additions and 1 deletions
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3
drivers/char/isicom.c
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@ -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;