linux-kernel - Re: [PATCH v2] misc: aspeed-lpc-ctrl: Correct return values

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Date:   Mon, 06 May 2019 00:24:13 -0400
From:   "Andrew Jeffery" <andrew@...id.au>
To:     "Vijay Khemka" <vijaykhemka@...com>,
        "Arnd Bergmann" <arnd@...db.de>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Joel Stanley" <joel@....id.au>,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc:     sdasari@...com
Subject: Re: [PATCH v2] misc: aspeed-lpc-ctrl: Correct return values



On Sat, 4 May 2019, at 03:43, Vijay Khemka wrote:
> Corrected some of return values with appropriate meanings and reported
> relevant messages as debug information.
> 
> Signed-off-by: Vijay Khemka <vijaykhemka@...com>

Thanks for the fixes, this looks okay now. However, was there a reason for
not squashing change into your previous patch that introduced the issues
this fixes? That hasn't been applied yet either as far as I'm aware. I'd prefer
we do that and submit a single, good patch if we can.

Andrew

> ---
>  drivers/misc/aspeed-lpc-ctrl.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/misc/aspeed-lpc-ctrl.c 
> b/drivers/misc/aspeed-lpc-ctrl.c
> index 332210e06e98..aca13779764a 100644
> --- a/drivers/misc/aspeed-lpc-ctrl.c
> +++ b/drivers/misc/aspeed-lpc-ctrl.c
> @@ -93,8 +93,8 @@ static long aspeed_lpc_ctrl_ioctl(struct file *file, 
> unsigned int cmd,
>  
>  		/* If memory-region is not described in device tree */
>  		if (!lpc_ctrl->mem_size) {
> -			dev_err(dev, "Didn't find reserved memory\n");
> -			return -EINVAL;
> +			dev_dbg(dev, "Didn't find reserved memory\n");
> +			return -ENXIO;
>  		}
>  
>  		map.size = lpc_ctrl->mem_size;
> @@ -134,16 +134,16 @@ static long aspeed_lpc_ctrl_ioctl(struct file 
> *file, unsigned int cmd,
>  
>  		if (map.window_type == ASPEED_LPC_CTRL_WINDOW_FLASH) {
>  			if (!lpc_ctrl->pnor_size) {
> -				dev_err(dev, "Didn't find host pnor flash\n");
> -				return -EINVAL;
> +				dev_dbg(dev, "Didn't find host pnor flash\n");
> +				return -ENXIO;
>  			}
>  			addr = lpc_ctrl->pnor_base;
>  			size = lpc_ctrl->pnor_size;
>  		} else if (map.window_type == ASPEED_LPC_CTRL_WINDOW_MEMORY) {
>  			/* If memory-region is not described in device tree */
>  			if (!lpc_ctrl->mem_size) {
> -				dev_err(dev, "Didn't find reserved memory\n");
> -				return -EINVAL;
> +				dev_dbg(dev, "Didn't find reserved memory\n");
> +				return -ENXIO;
>  			}
>  			addr = lpc_ctrl->mem_base;
>  			size = lpc_ctrl->mem_size;
> @@ -239,7 +239,7 @@ static int aspeed_lpc_ctrl_probe(struct 
> platform_device *pdev)
>  		of_node_put(node);
>  		if (rc) {
>  			dev_err(dev, "Couldn't address to resource for reserved memory\n");
> -			return -ENOMEM;
> +			return -ENXIO;
>  		}
>  
>  		lpc_ctrl->mem_size = resource_size(&resm);
> -- 
> 2.17.1
> 
>