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authorDavid Hsu <davidhsu@google.com>2016-08-10 00:57:46 +0300
committerThierry Reding <thierry.reding@gmail.com>2016-09-05 17:45:39 +0300
commit0733424c9ba9f42242409d1ece780777272f7ea1 (patch)
tree7d4ab85ed86beb175351738eef22132d8987678e /include/linux/pwm.h
parent29b4817d4018df78086157ea3a55c1d9424a7cfc (diff)
downloadlinux-0733424c9ba9f42242409d1ece780777272f7ea1.tar.xz
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 'include/linux/pwm.h')
-rw-r--r--include/linux/pwm.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index f1bbae014889..2c6c5114c089 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -641,6 +641,7 @@ static inline void pwm_remove_table(struct pwm_lookup *table, size_t num)
#ifdef CONFIG_PWM_SYSFS
void pwmchip_sysfs_export(struct pwm_chip *chip);
void pwmchip_sysfs_unexport(struct pwm_chip *chip);
+void pwmchip_sysfs_unexport_children(struct pwm_chip *chip);
#else
static inline void pwmchip_sysfs_export(struct pwm_chip *chip)
{
@@ -649,6 +650,10 @@ static inline void pwmchip_sysfs_export(struct pwm_chip *chip)
static inline void pwmchip_sysfs_unexport(struct pwm_chip *chip)
{
}
+
+static inline void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
+{
+}
#endif /* CONFIG_PWM_SYSFS */
#endif /* __LINUX_PWM_H */