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authorAlex Shi <alex.shi@linaro.org>2016-10-18 12:31:07 +0800
committerAlex Shi <alex.shi@linaro.org>2016-10-18 12:31:07 +0800
commita66f9577c6e5280d83d45152aea29cf5e4548858 (patch)
treeebb42fa6ef16a535adbd5acb8cc79bdd2980da24 /drivers/char/hw_random/omap-rng.c
parent26700159745df7db2bc75e8032d2a36913c37880 (diff)
parent2308e34317c8cc7beb03a3d18dc39d32015eff06 (diff)
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'drivers/char/hw_random/omap-rng.c')
-rw-r--r--drivers/char/hw_random/omap-rng.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 8a1432e8bb80..01d4be2c354b 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -384,7 +384,12 @@ static int omap_rng_probe(struct platform_device *pdev)
}
pm_runtime_enable(&pdev->dev);
- pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret);
+ pm_runtime_put_noidle(&pdev->dev);
+ goto err_ioremap;
+ }
ret = (dev->of_node) ? of_get_omap_rng_device_details(priv, pdev) :
get_omap_rng_device_details(priv);
@@ -435,8 +440,15 @@ static int __maybe_unused omap_rng_suspend(struct device *dev)
static int __maybe_unused omap_rng_resume(struct device *dev)
{
struct omap_rng_dev *priv = dev_get_drvdata(dev);
+ int ret;
+
+ ret = pm_runtime_get_sync(dev);
+ if (ret) {
+ dev_err(dev, "Failed to runtime_get device: %d\n", ret);
+ pm_runtime_put_noidle(dev);
+ return ret;
+ }
- pm_runtime_get_sync(dev);
priv->pdata->init(priv);
return 0;