diff options
| author |   Ulf Hansson <ulf.hansson@linaro.org> | 2013-11-13 15:45:03 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-11-14 00:48:19 +0100 |
| commit | aa1b9f13b3346352455bfdc343ecff7667b84ff5 (patch) | |
| tree | 03974c3bb35582ce372d66b6017413146c7e2be1 /drivers/base | |
| parent | PM / Runtime: Update documentation around probe|remove|suspend (diff) | |
| download | linux-dev-aa1b9f13b3346352455bfdc343ecff7667b84ff5.tar.xz linux-dev-aa1b9f13b3346352455bfdc343ecff7667b84ff5.zip | |
PM / Runtime: Fix error path for prepare
If a device prepare callback for some reason would fail, the PM core
prevented the device from going inactive forever.
In this case, to reverse the pm_runtime_get_noresume() we invokes the
asyncronous pm_runtime_put(), thus restoring the usage count.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 9f098a82cf04..97db7552e90a 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1277,6 +1277,9 @@ static int device_prepare(struct device *dev, pm_message_t state) device_unlock(dev); + if (error) + pm_runtime_put(dev); + return error; } |