tree aa8bd3253d87b0e41046940237134c60aee8d86b
parent 47bbdafa8ab90e3d4b7a4c6dd9bf54f7bc6df66d
author Jiri Slaby <jslaby@suse.cz> 1318411962 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1321032912 -0800

TTY: drop driver reference in tty_open fail path

commit c290f8358acaeffd8e0c551ddcc24d1206143376 upstream.

When tty_driver_lookup_tty fails in tty_open, we forget to drop a
reference to the tty driver. This was added by commit 4a2b5fddd5 (Move
tty lookup/reopen to caller).

Fix that by adding tty_driver_kref_put to the fail path.

I will refactor the code later. This is for the ease of backporting to
stable.

Introduced-in: v2.6.28-rc2
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>