diff mbox series

[-next,resend,1/5] usb: musb: core: Switch to use dev_err_probe() helper

Message ID 20220926141510.2265523-2-yangyingliang@huawei.com (mailing list archive)
State Superseded
Headers show
Series usb: musb: Switch to use dev_err_probe() helper | expand

Commit Message

Yang Yingliang Sept. 26, 2022, 2:15 p.m. UTC
In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/usb/musb/musb_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Comments

Sergey Shtylyov Sept. 26, 2022, 7:12 p.m. UTC | #1
Hello!

On 9/26/22 5:15 PM, Yang Yingliang wrote:

> In the probe path, dev_err() can be replaced with dev_err_probe()
> which will check if error code is -EPROBE_DEFER and prints the
> error name. It also sets the defer probe reason which can be
> checked later through debugfs. It's more simple in error path.
> 
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
> ---
>  drivers/usb/musb/musb_core.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> index bbbcfd49fb35..37ef9d8cb8ea 100644
> --- a/drivers/usb/musb/musb_core.c
> +++ b/drivers/usb/musb/musb_core.c
> @@ -2595,9 +2595,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
>  	musb_platform_exit(musb);
>  
>  fail1:
> -	if (status != -EPROBE_DEFER)
> -		dev_err(musb->controller,
> -			"%s failed with status %d\n", __func__, status);
> +	dev_err_probe(musb->controller, status,
> +		      "%s failed with status\n", __func__);

   Printing "with status" when you no longer print the status itself has no sense.

[...]

MBR, Sergey
Yang Yingliang Sept. 27, 2022, 1:17 a.m. UTC | #2
Hi,

On 2022/9/27 3:12, Sergei Shtylyov wrote:
> Hello!
>
> On 9/26/22 5:15 PM, Yang Yingliang wrote:
>
>> In the probe path, dev_err() can be replaced with dev_err_probe()
>> which will check if error code is -EPROBE_DEFER and prints the
>> error name. It also sets the defer probe reason which can be
>> checked later through debugfs. It's more simple in error path.
>>
>> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
>> ---
>>   drivers/usb/musb/musb_core.c | 5 ++---
>>   1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
>> index bbbcfd49fb35..37ef9d8cb8ea 100644
>> --- a/drivers/usb/musb/musb_core.c
>> +++ b/drivers/usb/musb/musb_core.c
>> @@ -2595,9 +2595,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
>>   	musb_platform_exit(musb);
>>   
>>   fail1:
>> -	if (status != -EPROBE_DEFER)
>> -		dev_err(musb->controller,
>> -			"%s failed with status %d\n", __func__, status);
>> +	dev_err_probe(musb->controller, status,
>> +		      "%s failed with status\n", __func__);
>     Printing "with status" when you no longer print the status itself has no sense.
Yes, " with status" string should be removed.

Thanks,
Yang
>
> [...]
>
> MBR, Sergey
> .
diff mbox series

Patch

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index bbbcfd49fb35..37ef9d8cb8ea 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2595,9 +2595,8 @@  musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	musb_platform_exit(musb);
 
 fail1:
-	if (status != -EPROBE_DEFER)
-		dev_err(musb->controller,
-			"%s failed with status %d\n", __func__, status);
+	dev_err_probe(musb->controller, status,
+		      "%s failed with status\n", __func__);
 
 	musb_free(musb);