[RESEND PATCH V2 1/3] pwm: imx-tpm: Use dev_err_probe() to simplify error handling

From: Anson Huang
Date: Tue Oct 20 2020 - 01:46:25 EST


dev_err_probe() can reduce code size, uniform error handling and record the
defer probe reason etc., use it to simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
changes since V1:
- remove redundant return value print.
---
drivers/pwm/pwm-imx-tpm.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/pwm/pwm-imx-tpm.c b/drivers/pwm/pwm-imx-tpm.c
index fcdf6be..aaf629b 100644
--- a/drivers/pwm/pwm-imx-tpm.c
+++ b/drivers/pwm/pwm-imx-tpm.c
@@ -350,13 +350,9 @@ static int pwm_imx_tpm_probe(struct platform_device *pdev)
return PTR_ERR(tpm->base);

tpm->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(tpm->clk)) {
- ret = PTR_ERR(tpm->clk);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "failed to get PWM clock: %d\n", ret);
- return ret;
- }
+ if (IS_ERR(tpm->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(tpm->clk),
+ "failed to get PWM clock\n");

ret = clk_prepare_enable(tpm->clk);
if (ret) {
--
2.7.4