* [PATCH] Input: lpc32xx-keys - Make use of the helper function dev_err_probe()
@ 2021-09-16 15:33 Cai Huoqing
2021-09-16 19:58 ` Vladimir Zapolskiy
0 siblings, 1 reply; 2+ messages in thread
From: Cai Huoqing @ 2021-09-16 15:33 UTC (permalink / raw)
To: caihuoqing
Cc: Dmitry Torokhov, Vladimir Zapolskiy, linux-input,
linux-arm-kernel, linux-kernel
When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
---
drivers/input/keyboard/lpc32xx-keys.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/input/keyboard/lpc32xx-keys.c b/drivers/input/keyboard/lpc32xx-keys.c
index 943aeeb0de79..12bdf68b8fe7 100644
--- a/drivers/input/keyboard/lpc32xx-keys.c
+++ b/drivers/input/keyboard/lpc32xx-keys.c
@@ -227,10 +227,9 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
/* Get the key scanner clock */
kscandat->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(kscandat->clk)) {
- dev_err(&pdev->dev, "failed to get clock\n");
- return PTR_ERR(kscandat->clk);
- }
+ if (IS_ERR(kscandat->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(kscandat->clk),
+ "failed to get clock\n");
/* Configure the key scanner */
error = clk_prepare_enable(kscandat->clk);
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] Input: lpc32xx-keys - Make use of the helper function dev_err_probe()
2021-09-16 15:33 [PATCH] Input: lpc32xx-keys - Make use of the helper function dev_err_probe() Cai Huoqing
@ 2021-09-16 19:58 ` Vladimir Zapolskiy
0 siblings, 0 replies; 2+ messages in thread
From: Vladimir Zapolskiy @ 2021-09-16 19:58 UTC (permalink / raw)
To: Cai Huoqing; +Cc: Dmitry Torokhov, linux-input, linux-arm-kernel, linux-kernel
Hi Cai,
On 9/16/21 6:33 PM, Cai Huoqing wrote:
> When possible use dev_err_probe help to properly deal with the
> PROBE_DEFER error, the benefit is that DEFER issue will be logged
> in the devices_deferred debugfs file.
> Using dev_err_probe() can reduce code size, and the error value
> gets printed.
>
> Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
> ---
> drivers/input/keyboard/lpc32xx-keys.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/input/keyboard/lpc32xx-keys.c b/drivers/input/keyboard/lpc32xx-keys.c
> index 943aeeb0de79..12bdf68b8fe7 100644
> --- a/drivers/input/keyboard/lpc32xx-keys.c
> +++ b/drivers/input/keyboard/lpc32xx-keys.c
> @@ -227,10 +227,9 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
>
> /* Get the key scanner clock */
> kscandat->clk = devm_clk_get(&pdev->dev, NULL);
> - if (IS_ERR(kscandat->clk)) {
> - dev_err(&pdev->dev, "failed to get clock\n");
> - return PTR_ERR(kscandat->clk);
> - }
> + if (IS_ERR(kscandat->clk))
> + return dev_err_probe(&pdev->dev, PTR_ERR(kscandat->clk),
> + "failed to get clock\n");
>
> /* Configure the key scanner */
> error = clk_prepare_enable(kscandat->clk);
>
thank you for the change!
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
--
Best wishes,
Vladimir
^ permalink raw reply [flat|nested] 2+ messages in thread
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