From 1ea1d49d1630c1617cd04489faf419b0aeb18bfa Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Tue, 20 Sep 2016 10:25:40 -0500 Subject: hwrng: omap - Only fail if pm_runtime_get_sync returns < 0 commit ad8529fde9e3601180a839867a8ab041109aebb5 upstream. Currently omap-rng checks the return value of pm_runtime_get_sync and reports failure if anything is returned, however it should be checking if ret < 0 as pm_runtime_get_sync return 0 on success but also can return 1 if the device was already active which is not a failure case. Only values < 0 are actual failures. Fixes: 61dc0a446e5d ("hwrng: omap - Fix assumption that runtime_get_sync will always succeed") Signed-off-by: Dave Gerlach Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/char/hw_random/omap-rng.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/char') diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 01d4be2c354b..f5c26a5f6875 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -385,7 +385,7 @@ static int omap_rng_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); - if (ret) { + if (ret < 0) { dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret); pm_runtime_put_noidle(&pdev->dev); goto err_ioremap; @@ -443,7 +443,7 @@ static int __maybe_unused omap_rng_resume(struct device *dev) int ret; ret = pm_runtime_get_sync(dev); - if (ret) { + if (ret < 0) { dev_err(dev, "Failed to runtime_get device: %d\n", ret); pm_runtime_put_noidle(dev); return ret; -- cgit v1.2.3