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Subject[PATCH v1] PM / devfreq: exynos-ppmu : Handle return value of clk_prepare_enable
Date
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
drivers/devfreq/event/exynos-ppmu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
index 9b73509..8f6537a 100644
--- a/drivers/devfreq/event/exynos-ppmu.c
+++ b/drivers/devfreq/event/exynos-ppmu.c
@@ -648,7 +648,11 @@ static int exynos_ppmu_probe(struct platform_device *pdev)
dev_name(&pdev->dev), desc[i].name);
}

- clk_prepare_enable(info->ppmu.clk);
+ ret = clk_prepare_enable(info->ppmu.clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to prepare ppmu clock\n");
+ return ret;
+ }

return 0;
}
--
1.9.1
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