serial: atmel: fix error path of probe function
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Wed, 23 Sep 2015 06:57:40 +0000 (08:57 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Oct 2015 17:51:42 +0000 (18:51 +0100)
commit8f1bd8f2ad2358d6a88c115481ff3e69817d1bde
tree1b5101b852e8f68c1189a0ea3d720f60f15df371
parentc1a752ba2d6b8a52879c7ab637cff38359ea9827
serial: atmel: fix error path of probe function

If atmel_init_gpios fails the port has already been marked as busy (in
line 2629), so this must be undone in the error path.

This bug was introduced because I created the patch that finally
became 722ccf416ac2 ("serial: atmel: fix error handling when
mctrl_gpio_init fails") on top of 3.19 which didn't have commit
6fbb9bdf0f3f ("tty/serial: at91: fix error handling in
atmel_serial_probe()") yet.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 722ccf416ac2 ("serial: atmel: fix error handling when mctrl_gpio_init fails")
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/atmel_serial.c