diff options
| author | Johan Hovold <johan@kernel.org> | 2016-11-01 11:46:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-08 07:15:24 +0100 |
| commit | 4fd108fa1a7438566e2b16bee74228c3227c9597 (patch) | |
| tree | eb9088f673526b2a6769c3f74d33e4758d03246a /drivers/pwm | |
| parent | d7a2c259fc1f41c3c030868b0344112c92f06c34 (diff) | |
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>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/sysfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c index c20163b92991..375008e2be20 100644 --- a/drivers/pwm/sysfs.c +++ b/drivers/pwm/sysfs.c @@ -366,6 +366,8 @@ void pwmchip_sysfs_unexport_children(struct pwm_chip *chip) if (test_bit(PWMF_EXPORTED, &pwm->flags)) pwm_unexport_child(parent, pwm); } + + put_device(parent); } static int __init pwm_sysfs_init(void) |