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authorDavid Hsu <davidhsu@google.com>2016-08-09 14:57:46 -0700
committerThierry Reding <thierry.reding@gmail.com>2016-09-05 16:45:39 +0200
commit0733424c9ba9f42242409d1ece780777272f7ea1 (patch)
tree7d4ab85ed86beb175351738eef22132d8987678e /drivers/pwm/core.c
parent29b4817d4018df78086157ea3a55c1d9424a7cfc (diff)
downloadlinux-0733424c9ba9f42242409d1ece780777272f7ea1.tar.bz2
pwm: Unexport children before chip removal
Exported pwm channels aren't removed before the pwmchip and are leaked. This results in invalid sysfs files. This fix removes all exported pwm channels before chip removal. Signed-off-by: David Hsu <davidhsu@google.com> Fixes: 76abbdde2d95 ("pwm: Add sysfs interface") Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/core.c')
-rw-r--r--drivers/pwm/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 0dbd29e287db..172ef8245811 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -339,6 +339,8 @@ int pwmchip_remove(struct pwm_chip *chip)
unsigned int i;
int ret = 0;
+ pwmchip_sysfs_unexport_children(chip);
+
mutex_lock(&pwm_lock);
for (i = 0; i < chip->npwm; i++) {