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nvmem: rockchip-otp: Improve probe error handling

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Enhance error handling in the probe function by making use of
dev_err_probe(), which ensures the error code is always printed, in
addition to the specified error message.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-13-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Cristian Ciocaltea 2023-06-11 15:03:16 +01:00 committed by Greg Kroah-Hartman
parent d325c9dd2b
commit 912517345b
1 changed files with 12 additions and 9 deletions
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21
drivers/nvmem/rockchip-otp.c
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@ -235,10 +235,8 @@ static int rockchip_otp_probe(struct platform_device *pdev)
int ret, i;
data = of_device_get_match_data(dev);
if (!data) {
dev_err(dev, "failed to get match data\n");
return -EINVAL;
}
if (!data)
return dev_err_probe(dev, -EINVAL, "failed to get match data\n");
otp = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_otp),
GFP_KERNEL);
@ -249,7 +247,8 @@ static int rockchip_otp_probe(struct platform_device *pdev)
otp->dev = dev;
otp->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(otp->base))
return PTR_ERR(otp->base);
return dev_err_probe(dev, PTR_ERR(otp->base),
"failed to ioremap resource\n");
otp->clks = devm_kcalloc(dev, data->num_clks, sizeof(*otp->clks),
GFP_KERNEL);
@ -261,18 +260,22 @@ static int rockchip_otp_probe(struct platform_device *pdev)
ret = devm_clk_bulk_get(dev, data->num_clks, otp->clks);
if (ret)
return ret;
return dev_err_probe(dev, ret, "failed to get clocks\n");
otp->rst = devm_reset_control_array_get_exclusive(dev);
if (IS_ERR(otp->rst))
return PTR_ERR(otp->rst);
return dev_err_probe(dev, PTR_ERR(otp->rst),
"failed to get resets\n");
otp_config.size = data->size;
otp_config.priv = otp;
otp_config.dev = dev;
nvmem = devm_nvmem_register(dev, &otp_config);
return PTR_ERR_OR_ZERO(nvmem);
nvmem = devm_nvmem_register(dev, &otp_config);
if (IS_ERR(nvmem))
return dev_err_probe(dev, PTR_ERR(nvmem),
"failed to register nvmem device\n");
return 0;
}
static struct platform_driver rockchip_otp_driver = {