pwm: Fix device reference leak
authorJohan Hovold <johan@kernel.org>
Tue, 1 Nov 2016 10:46:39 +0000 (11:46 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 8 Dec 2016 06:15:24 +0000 (07:15 +0100)
commit4fd108fa1a7438566e2b16bee74228c3227c9597
treeeb9088f673526b2a6769c3f74d33e4758d03246a
parentd7a2c259fc1f41c3c030868b0344112c92f06c34
pwm: Fix device reference leak

commit 0e1614ac84f1719d87bed577963bb8140d0c9ce8 upstream.

Make sure to drop the reference to the parent device taken by
class_find_device() after "unexporting" any children when deregistering
a PWM chip.

Fixes: 0733424c9ba9 ("pwm: Unexport children before chip removal")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/pwm/sysfs.c