gpio: sysfs: fix gpio-chip device-attribute leak
authorJohan Hovold <johan@kernel.org>
Tue, 13 Jan 2015 12:00:04 +0000 (13:00 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 30 Jan 2015 01:40:55 +0000 (17:40 -0800)
commitaa35a487040862e568968dbcf34aad0827eba588
tree6f0dcb2d2d541ee9b4ae778fc68eb289f14e94c6
parent5d53369ea537c7e13e151c157003c399d1d928c3
gpio: sysfs: fix gpio-chip device-attribute leak

commit 121b6a79955a3a3fd7bbb9b8cb88d5b9dad6283d upstream.

The gpio-chip device attributes were never destroyed when the device was
removed.

Fix by using device_create_with_groups() to create the device attributes
of the chip class device.

Note that this also fixes the attribute-creation race with userspace.

Fixes: d8f388d8dc8d ("gpio: sysfs interface")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpio/gpiolib.c