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hwspinlock: fix __hwspin_lock_request error path

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Even in failed case of pm_runtime_get_sync, the usage_count
is incremented. In order to keep the usage_count with correct
value and runtime power management to behave correctly, call
pm_runtime_put_noidle in such case.

In __hwspin_lock_request, module_put is also called before
return in pm_runtime_get_sync failed case.

Cc: [email protected]
Signed-off-by Liu Chuansheng <[email protected]>
Signed-off-by: Li Fei <[email protected]>
[edit commit log]
Signed-off-by: Ohad Ben-Cohen <[email protected]>
This commit is contained in:
Li Fei 2013-04-05 21:20:36 +08:00 • committed by Ohad Ben-Cohen
commit c10b90d85a
1 changed files with 2 additions and 0 deletions
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2
drivers/hwspinlock/hwspinlock_core.c
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@ -416,6 +416,8 @@ static int __hwspin_lock_request(struct hwspinlock *hwlock)
ret = pm_runtime_get_sync(dev);
if (ret < 0) {
dev_err(dev, "%s: can't power on device\n", __func__);
pm_runtime_put_noidle(dev);
module_put(dev->driver->owner);
return ret;
}