diff options
| author | Yi Yingao <m202271736@hust.edu.cn> | 2023-05-09 11:52:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-19 17:21:57 +0300 |
| commit | 27918479409d08394195e03323ca49d036528c80 (patch) | |
| tree | de96faea598cf615cb7e5092640111fa06dd1c95 /drivers/nvmem | |
| parent | e3a71d821e244726ab07df3c97afd31d2a16b380 (diff) | |
| download | linux-27918479409d08394195e03323ca49d036528c80.tar.xz | |
nvmem: sunplus-ocotp: release otp->clk before return
[ Upstream commit 095bb8ba45f28ed15296eb5b7662e03e57d5e34e ]
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: 8747ec2e9762 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/sunplus-ocotp.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/nvmem/sunplus-ocotp.c b/drivers/nvmem/sunplus-ocotp.c index 52b928a7a6d5..f85350b17d67 100644 --- a/drivers/nvmem/sunplus-ocotp.c +++ b/drivers/nvmem/sunplus-ocotp.c @@ -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[] = { |