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| author | Johan Hovold <johan@kernel.org> | 2016-11-01 11:46:39 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2017-02-23 03:54:40 +0000 |
| commit | 61c64c67981229a7394ab754b3ed1b96713faade (patch) | |
| tree | fac287a0b017c3412631d2b4b19e5cc8adc621db /drivers/pwm | |
| parent | 96239edec08bb293755bdebefe3690763905a843 (diff) | |
| download | linux-stable-61c64c67981229a7394ab754b3ed1b96713faade.tar.gz linux-stable-61c64c67981229a7394ab754b3ed1b96713faade.tar.bz2 linux-stable-61c64c67981229a7394ab754b3ed1b96713faade.zip | |
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: Ben Hutchings <ben@decadent.org.uk>
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 6c88e1adf637..5b64f09ce314 100644 --- a/drivers/pwm/sysfs.c +++ b/drivers/pwm/sysfs.c @@ -356,6 +356,8 @@ 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) |