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authorDavid Hsu <davidhsu@google.com>2016-08-09 14:57:46 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-10 16:36:37 +0100
commit4b06152a4822ef10a2b695d6fc75303ad657096b (patch)
tree2e1053dade051dcc637e591e4662bb878b98fe64 /drivers/pwm/core.c
parent353bbacfd57f8c849eca2f4d6618ff6f0f6eea79 (diff)
pwm: Unexport children before chip removal
commit 0733424c9ba9f42242409d1ece780777272f7ea1 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 7831bc6b51dd..ec84ff8ad1b4 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -321,6 +321,8 @@ 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++) {