[PATCH v2 6/9] commands: tlv: clarify error opening tlv

[Ahmad Fatoum]

On 9/29/25 10:03 AM, Jonas Rebmann wrote:
> Returning PTR_ERR(tlvdev) instead of printing an error message leads to
> the same output when CONFIG_CMD_TLV and when the specified path could
> not be read:
> 
>   tlv: No such file or directory
> 
> In the latter case, print an explanatory message instead.
> 
> Signed-off-by: Jonas Rebmann <jre at pengutronix.de>

Acked-by: Ahmad Fatoum <a.fatoum at pengutronix.de>

FWIW, this is not strictly necessary anymore since:
https://lore.barebox.org/barebox/20250926091027.1024322-2-a.fatoum@pengutronix.de/T/#u

> ---
>  commands/tlv.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/commands/tlv.c b/commands/tlv.c
> index 53fbc2a291..6118a2947f 100644
> --- a/commands/tlv.c
> +++ b/commands/tlv.c
> @@ -28,9 +28,11 @@ static int do_tlv(int argc, char *argv[])
>  	if (!filename)
>  		return COMMAND_ERROR_USAGE;
>  
> -	tlvdev = tlv_register_device_by_path(argv[optind], NULL);
> -	if (IS_ERR(tlvdev))
> -		return PTR_ERR(tlvdev);
> +	tlvdev = tlv_register_device_by_path(filename, NULL);
> +	if (IS_ERR(tlvdev)) {
> +		printf("Could not open \"%s\": %m\n", filename);
> +		return COMMAND_ERROR;
> +	}
>  
>  	if (fixup)
>  		return tlv_of_register_fixup(tlvdev);
> 

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