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ARM: imx: add missing clk_disable_unprepare()

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clock source is prepared and enabled by clk_prepare_enable()
in probe function, but no disable or unprepare in remove and
error path.

Fixes: 9454a0caff ("ARM: imx: add mmdc ipg clock operation for mmdc")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Yang Yingliang 2021-06-15 20:52:39 +08:00 committed by Shawn Guo
parent f9613aa07f
commit f07ec85365
1 changed files with 9 additions and 3 deletions
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12
arch/arm/mach-imx/mmdc.c
View file

@ -103,6 +103,7 @@ struct mmdc_pmu {
struct perf_event *mmdc_events[MMDC_NUM_COUNTERS];
struct hlist_node node;
struct fsl_mmdc_devtype_data *devtype_data;
struct clk *mmdc_ipg_clk;
};
/*
@ -463,11 +464,13 @@ static int imx_mmdc_remove(struct platform_device *pdev)
cpuhp_state_remove_instance_nocalls(cpuhp_mmdc_state, &pmu_mmdc->node);
perf_pmu_unregister(&pmu_mmdc->pmu);
iounmap(pmu_mmdc->mmdc_base);
clk_disable_unprepare(pmu_mmdc->mmdc_ipg_clk);
kfree(pmu_mmdc);
return 0;
}
static int imx_mmdc_perf_init(struct platform_device *pdev, void __iomem *mmdc_base)
static int imx_mmdc_perf_init(struct platform_device *pdev, void __iomem *mmdc_base,
struct clk *mmdc_ipg_clk)
{
struct mmdc_pmu *pmu_mmdc;
char *name;
@ -495,6 +498,7 @@ static int imx_mmdc_perf_init(struct platform_device *pdev, void __iomem *mmdc_b
}
mmdc_num = mmdc_pmu_init(pmu_mmdc, mmdc_base, &pdev->dev);
pmu_mmdc->mmdc_ipg_clk = mmdc_ipg_clk;
if (mmdc_num == 0)
name = "mmdc";
else
@ -568,9 +572,11 @@ static int imx_mmdc_probe(struct platform_device *pdev)
val &= ~(1 << BP_MMDC_MAPSR_PSD);
writel_relaxed(val, reg);
err = imx_mmdc_perf_init(pdev, mmdc_base);
if (err)
err = imx_mmdc_perf_init(pdev, mmdc_base, mmdc_ipg_clk);
if (err) {
iounmap(mmdc_base);
clk_disable_unprepare(mmdc_ipg_clk);
}
return err;
}