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nvmem: sunplus-ocotp: release otp->clk before return

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Smatch reports:
drivers/nvmem/sunplus-ocotp.c:205 sp_ocotp_probe()
warn: 'otp->clk' from clk_prepare() not released on lines: 196.

In the function sp_ocotp_probe(struct platform_device *pdev), otp->clk may
not be released before return.

To fix this issue, using function clk_unprepare() to release otp->clk.

Fixes: 8747ec2e97 ("nvmem: Add driver for OCOTP in Sunplus SP7021")
Signed-off-by: Yi Yingao <m202271736@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Message-ID: <20230509085237.5917-1-m202271736@hust.edu.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yi Yingao 2023-05-09 16:52:36 +08:00 committed by Greg Kroah-Hartman
parent b1c8ea3c09
commit 095bb8ba45
1 changed files with 7 additions and 2 deletions
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9
drivers/nvmem/sunplus-ocotp.c
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@ -192,9 +192,11 @@ static int sp_ocotp_probe(struct platform_device *pdev)
sp_ocotp_nvmem_config.dev = dev;
nvmem = devm_nvmem_register(dev, &sp_ocotp_nvmem_config);
if (IS_ERR(nvmem))
return dev_err_probe(&pdev->dev, PTR_ERR(nvmem),
if (IS_ERR(nvmem)) {
ret = dev_err_probe(&pdev->dev, PTR_ERR(nvmem),
"register nvmem device fail\n");
goto err;
}
platform_set_drvdata(pdev, nvmem);
@ -203,6 +205,9 @@ static int sp_ocotp_probe(struct platform_device *pdev)
(int)OTP_WORD_SIZE, (int)QAC628_OTP_SIZE);
return 0;
err:
clk_unprepare(otp->clk);
return ret;
}
static const struct of_device_id sp_ocotp_dt_ids[] = {