Re: [PATCH] mhi_bus: core: Return EBUSY if MHI ring is full

[Manivannan Sadhasivam]

On Tue, Feb 16, 2021 at 11:48:34AM -0700, Jeffrey Hugo wrote:
> From: Fan Wu <wufan@xxxxxxxxxxxxxx>
> 
> Currently ENOMEM is returned when MHI ring is full. This error code is
> very misleading. Change to EBUSY instead.
> 

Please use the subject prefix:

"bus: mhi: ..."

Thanks,
Mani

> Signed-off-by: Fan Wu <wufan@xxxxxxxxxxxxxx>
> Signed-off-by: Jeffrey Hugo <jhugo@xxxxxxxxxxxxxx>
> ---
>  drivers/bus/mhi/core/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
> index f182736..21eb5fc 100644
> --- a/drivers/bus/mhi/core/main.c
> +++ b/drivers/bus/mhi/core/main.c
> @@ -996,7 +996,7 @@ static int mhi_queue(struct mhi_device *mhi_dev, struct mhi_buf_info *buf_info,
>  
>  	ret = mhi_is_ring_full(mhi_cntrl, tre_ring);
>  	if (unlikely(ret)) {
> -		ret = -ENOMEM;
> +		ret = -EBUSY;
>  		goto exit_unlock;
>  	}
>  
> -- 
> Qualcomm Technologies, Inc. is a member of the
> Code Aurora Forum, a Linux Foundation Collaborative Project.
>