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authorJohan Hovold <johan@kernel.org>2016-11-01 11:46:39 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-12-08 07:15:24 +0100
commit4fd108fa1a7438566e2b16bee74228c3227c9597 (patch)
treeeb9088f673526b2a6769c3f74d33e4758d03246a /drivers
parentd7a2c259fc1f41c3c030868b0344112c92f06c34 (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')
-rw-r--r--drivers/pwm/sysfs.c2
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)