Re: [PATCH] scsi: ufs: core: Fix error return with query response

[Bean Huo <huobean@gmail.com>]

On Fri, 2025-01-17 at 16:16 +0900, Seunghui Lee wrote:
> There is currently no mechanism to return error from query responses.
> Return the error and print the corresponding error message with it.
> 
> Signed-off-by: Seunghui Lee <sh043.lee@samsung.com>
> ---
>  drivers/ufs/core/ufshcd.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 9c26e8767515..6b27ea1a7a1b 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -3118,8 +3118,13 @@ ufshcd_dev_cmd_completion(struct ufs_hba *hba,
> struct ufshcd_lrb *lrbp)
>         case UPIU_TRANSACTION_QUERY_RSP: {
>                 u8 response = lrbp->ucd_rsp_ptr->header.response;
>  
> -               if (response == 0)
> +               if (response == 0) {
>                         err = ufshcd_copy_query_response(hba, lrbp);
> +               } else {
> +                       err = -EINVAL;
> +                       dev_err(hba->dev, "%s: unexpected response
> %x\n",
> +                                       __func__, resp);
> +               }
>                 break;
>         }
>         case UPIU_TRANSACTION_REJECT_UPIU:



There is a confusing mix of UPIU transaction code and response in UPIU
here, I think you want to print "response" instead of transaction code.

dev_err(hba->dev, "%s: Unexpected response in Query RSP: %x\n",
__func__, response);