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authorFelipe Balbi <balbi@ti.com>2013-12-21 01:00:48 +0400
committerKishon Vijay Abraham I <kishon@ti.com>2013-12-24 22:22:58 +0400
commitcedb7f89d1e1f631b7e5d920fe1ea7f742d07f79 (patch)
tree77d10767ded08d3d950f33b3f500abf2f7e1fd0d /drivers/phy/phy-core.c
parent413541dd66d51f791a0b169d9b9014e4f56be13c (diff)
downloadlinux-cedb7f89d1e1f631b7e5d920fe1ea7f742d07f79.tar.xz
phy: core: properly handle failure of pm_runtime_get functions
In case pm_runtime_get*() fails, it still increments pm usage counter, so we *must* make sure to pm_runtime_put() even in those cases. This patch fixes that mistake the same way usbcore treats those possible failures. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/phy-core.c')
-rw-r--r--drivers/phy/phy-core.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 58e0e9739028..8797bb7d9c48 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -94,19 +94,31 @@ static struct phy_provider *of_phy_provider_lookup(struct device_node *node)
int phy_pm_runtime_get(struct phy *phy)
{
+ int ret;
+
if (!pm_runtime_enabled(&phy->dev))
return -ENOTSUPP;
- return pm_runtime_get(&phy->dev);
+ ret = pm_runtime_get(&phy->dev);
+ if (ret < 0 && ret != -EINPROGRESS)
+ pm_runtime_put_noidle(&phy->dev);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(phy_pm_runtime_get);
int phy_pm_runtime_get_sync(struct phy *phy)
{
+ int ret;
+
if (!pm_runtime_enabled(&phy->dev))
return -ENOTSUPP;
- return pm_runtime_get_sync(&phy->dev);
+ ret = pm_runtime_get_sync(&phy->dev);
+ if (ret < 0)
+ pm_runtime_put_sync(&phy->dev);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(phy_pm_runtime_get_sync);