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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2016-04-08 14:10:23 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-21 20:31:11 +0300 |
| commit | 0ae3aeefabbeef26294e7a349b51f1c761d46c9f (patch) | |
| tree | 0aa249f1af5a84c84d0c555a1b140c609cb01cfb | |
| parent | 16669befb0772eac6a76057b7010ba5b419c0e78 (diff) | |
| download | linux-0ae3aeefabbeef26294e7a349b51f1c761d46c9f.tar.xz | |
PM / Runtime: Fix error path in pm_runtime_force_resume()
As pm_runtime_set_active() may fail because the device's parent isn't
active, we can end up executing the ->runtime_resume() callback for the
device when it isn't allowed.
Fix this by invoking pm_runtime_set_active() before running the callback
and let's also deal with the error code.
Fixes: 37f204164dfb (PM: Add pm_runtime_suspend|resume_force functions)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: 3.15+ <stable@vger.kernel.org> # 3.15+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/base/power/runtime.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 4c7055009bd6..b74690418504 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -1506,11 +1506,16 @@ int pm_runtime_force_resume(struct device *dev) goto out; } - ret = callback(dev); + ret = pm_runtime_set_active(dev); if (ret) goto out; - pm_runtime_set_active(dev); + ret = callback(dev); + if (ret) { + pm_runtime_set_suspended(dev); + goto out; + } + pm_runtime_mark_last_busy(dev); out: pm_runtime_enable(dev); |