From: Cristian Ciocaltea <[email protected]>
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 <[email protected]>
Tested-by: Vincent Legoll <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]>
Signed-off-by: Srinivas Kandagatla <[email protected]>
---
drivers/nvmem/rockchip-otp.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/nvmem/rockchip-otp.c b/drivers/nvmem/rockchip-otp.c
index 439aea1f8874..84bf956cc4e1 100644
--- a/drivers/nvmem/rockchip-otp.c
+++ b/drivers/nvmem/rockchip-otp.c
@@ -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 = {
--
2.25.1