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authorOvidiu Panait <ovidiu.panait.oss@gmail.com>2025-06-29 20:31:41 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-15 16:39:09 +0200
commit13f75a6bc9d2c191505f68f026729eae40d94bfb (patch)
treeaad19f2becfd0c06d1e3251b7cc403ea8a12ac49
parentb129052f26227a93ecb93fd0d226c19bd7079deb (diff)
hwrng: mtk - handle devm_pm_runtime_enable errors
[ Upstream commit 522a242a18adc5c63a24836715dbeec4dc3faee1 ] Although unlikely, devm_pm_runtime_enable() call might fail, so handle the return value. Fixes: 78cb66caa6ab ("hwrng: mtk - Use devm_pm_runtime_enable") Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/char/hw_random/mtk-rng.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index b7fa1bc1122b..d09a4d813766 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -143,7 +143,9 @@ static int mtk_rng_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, priv);
pm_runtime_set_autosuspend_delay(&pdev->dev, RNG_AUTOSUSPEND_TIMEOUT);
pm_runtime_use_autosuspend(&pdev->dev);
- devm_pm_runtime_enable(&pdev->dev);
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret)
+ return ret;
dev_info(&pdev->dev, "registered RNG driver\n");