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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2019-03-25 10:49:33 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-05 15:38:12 +0100
commitae21311f818a810be0c4c1b90d52debc86f2be1f (patch)
treeff42e7c61e06333b6575857d716c1393b602cecd /drivers/pwm/pwm-berlin.c
parenta5ac276a5e5303083b48906706eac43f79516b3a (diff)
pwm: Clear chip_data in pwm_put()
commit e926b12c611c2095c7976e2ed31753ad6eb5ff1a upstream. After a PWM is disposed by its user the per chip data becomes invalid. Clear the data in common code instead of the device drivers to get consistent behaviour. Before this patch only three of nine drivers cleaned up here. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pwm/pwm-berlin.c')
-rw-r--r--drivers/pwm/pwm-berlin.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-berlin.c b/drivers/pwm/pwm-berlin.c
index 771859aca4be..7bb819e3c0c1 100644
--- a/drivers/pwm/pwm-berlin.c
+++ b/drivers/pwm/pwm-berlin.c
@@ -78,7 +78,6 @@ static void berlin_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
{
struct berlin_pwm_channel *channel = pwm_get_chip_data(pwm);
- pwm_set_chip_data(pwm, NULL);
kfree(channel);
}