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PM / devfreq: exynos-nocp: Handle return value of clk_prepare_enable
author
Arvind Yadav
<arvind.yadav.cs@gmail.com>
Fri, 19 May 2017 10:50:35 +0000
(16:20 +0530)
committer
MyungJoo Ham
<myungjoo.ham@samsung.com>
Mon, 12 Jun 2017 01:12:07 +0000
(10:12 +0900)
clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
drivers/devfreq/event/exynos-nocp.c
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diff --git
a/drivers/devfreq/event/exynos-nocp.c
b/drivers/devfreq/event/exynos-nocp.c
index
5c3e7b1
..
f6e7956
100644
(file)
--- a/
drivers/devfreq/event/exynos-nocp.c
+++ b/
drivers/devfreq/event/exynos-nocp.c
@@
-267,7
+267,11
@@
static int exynos_nocp_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, nocp);
- clk_prepare_enable(nocp->clk);
+ ret = clk_prepare_enable(nocp->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to prepare ppmu clock\n");
+ return ret;
+ }
pr_info("exynos-nocp: new NoC Probe device registered: %s\n",
dev_name(dev));