Re: [PATCH 2/3] scsi: ufs: Delete an error message for a failed memory allocation in ufshcd_memory_alloc()

[Subhash Jadavani]

On 2017-04-25 13:28, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Tue, 25 Apr 2017 21:50:43 +0200
>
> The script "checkpatch.pl" pointed information out like the following.
>
> WARNING: Possible unnecessary 'out of memory' message
>
> Thus remove such a statement here.
>
> Link:
> http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/scsi/ufs/ufshcd.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index ce385911a20e..5216e33e61a3 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -3274,8 +3274,7 @@ static int ufshcd_memory_alloc(struct ufs_hba 
> *hba)
>  				GFP_KERNEL);
> -	if (!hba->lrb) {
> -		dev_err(hba->dev, "LRB Memory allocation failed\n");
> +	if (!hba->lrb)
>  		goto out;
> -	}
> +
>  	return 0;
>  out:
>  	return -ENOMEM;

Looks good to me.
Reviewed-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>

PS: ufshcd_memory_alloc() also does some DMA coherent memory allocation 
(via dmam_alloc_coherent() APIs) and tries to print out the message on 
allocation failure. Although i don't know "out of memory" messages will 
be printed out by dmam_alloc_coherent() APIs or not. If it does print it 
out then we might want to remove our local memory allocation failure log 
messages.


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