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| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2015-12-09 16:05:59 +0200 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@gmail.com> | 2015-12-16 16:31:27 +0100 |
| commit | c7b91b33cf446ec09eedf4594cff8d7b85ef6870 (patch) | |
| tree | daffc01445932acf103e1cd1cec00df45de82b41 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | Linux 4.4-rc1 (diff) | |
| download | wireguard-linux-c7b91b33cf446ec09eedf4594cff8d7b85ef6870.tar.xz wireguard-linux-c7b91b33cf446ec09eedf4594cff8d7b85ef6870.zip | |
pwm: lpss: Remove ->free() callback
The LPSS PWM driver calls pwm_lpss_disable() when the PWM device is
released (for example unexported from sysfs). This in turn calls
pm_runtime_put() which makes runtime PM count to be unbalanced if the
device has not been enabled at this point.
This is easy to reproduce:
# cd /sys/class/pwm/pwmchip0
# echo 0 > export
# echo 0 > unexport
The count is unbalanced and prevents the PWM device from being powered on
next time.
Fix this by removing ->free() callback. There are no resources to be
released anyway.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions