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path: root/drivers/phy/phy-core.c
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-rw-r--r--drivers/phy/phy-core.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 645c867..a9cdeee2 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -162,6 +162,9 @@ int phy_init(struct phy *phy)
{
int ret;
+ if (!phy)
+ return 0;
+
ret = phy_pm_runtime_get_sync(phy);
if (ret < 0 && ret != -ENOTSUPP)
return ret;
@@ -187,6 +190,9 @@ int phy_exit(struct phy *phy)
{
int ret;
+ if (!phy)
+ return 0;
+
ret = phy_pm_runtime_get_sync(phy);
if (ret < 0 && ret != -ENOTSUPP)
return ret;
@@ -212,6 +218,9 @@ int phy_power_on(struct phy *phy)
{
int ret;
+ if (!phy)
+ return 0;
+
ret = phy_pm_runtime_get_sync(phy);
if (ret < 0 && ret != -ENOTSUPP)
return ret;
@@ -240,6 +249,9 @@ int phy_power_off(struct phy *phy)
{
int ret;
+ if (!phy)
+ return 0;
+
mutex_lock(&phy->mutex);
if (phy->power_count == 1 && phy->ops->power_off) {
ret = phy->ops->power_off(phy);
@@ -308,7 +320,7 @@ err0:
*/
void phy_put(struct phy *phy)
{
- if (IS_ERR(phy))
+ if (!phy || IS_ERR(phy))
return;
module_put(phy->ops->owner);
@@ -328,6 +340,9 @@ void devm_phy_put(struct device *dev, struct phy *phy)
{
int r;
+ if (!phy)
+ return;
+
r = devres_destroy(dev, devm_phy_release, devm_phy_match, phy);
dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");
}
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