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 <jo...@kernel.org> --- drivers/pwm/sysfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c index 0296d8178ae2..a813239300c3 100644 --- a/drivers/pwm/sysfs.c +++ b/drivers/pwm/sysfs.c @@ -425,6 +425,8 @@ 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) -- 2.7.3