From: Yang Yingliang <yangyingliang@huawei.com>
To: <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <linux-imx@nxp.com>
Cc: <shawnguo@kernel.org>
Subject: [PATCH -next v2 2/2] ARM: imx: add missing clk_disable_unprepare()
Date: Tue, 15 Jun 2021 20:52:39 +0800 [thread overview]
Message-ID: <20210615125239.1348845-3-yangyingliang@huawei.com> (raw)
In-Reply-To: <20210615125239.1348845-1-yangyingliang@huawei.com>
clock source is prepared and enabled by clk_prepare_enable()
in probe function, but no disable or unprepare in remove and
error path.
Fixes: 9454a0caff6a ("ARM: imx: add mmdc ipg clock operation for mmdc")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
arch/arm/mach-imx/mmdc.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-imx/mmdc.c b/arch/arm/mach-imx/mmdc.c
index 8e57691aafe2..4a6f1359e1e9 100644
--- a/arch/arm/mach-imx/mmdc.c
+++ b/arch/arm/mach-imx/mmdc.c
@@ -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;
}
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-06-15 17:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 12:52 [PATCH -next v2 0/2] ARM: imx: free resources Yang Yingliang
2021-06-15 12:52 ` [PATCH -next v2 1/2] ARM: imx: add missing iounmap() Yang Yingliang
2021-06-17 12:20 ` Aisheng Dong
2021-06-15 12:52 ` Yang Yingliang [this message]
2021-06-17 12:20 ` [PATCH -next v2 2/2] ARM: imx: add missing clk_disable_unprepare() Aisheng Dong
2021-07-14 7:19 ` [PATCH -next v2 0/2] ARM: imx: free resources Shawn Guo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210615125239.1348845-3-yangyingliang@huawei.com \
--to=yangyingliang@huawei.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=shawnguo@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).