Re: [PATCH 2/2] mtd: ubi: commands: added the new command 'ubirename'.

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Hi Giorgio,


Looks good mostly. Patch 1/2 is fine, some small remarks for this one.

On Fri, Sep 23, 2016 at 11:07:39AM +0200, Giorgio Dal Molin wrote:
> Signed-off-by: Giorgio Dal Molin <iw3gtf@xxxxxxxx>
> ---
>  commands/ubi.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 71 insertions(+)
> 
> diff --git a/commands/ubi.c b/commands/ubi.c
> index 7c55195..3c5729e 100644
> --- a/commands/ubi.c
> +++ b/commands/ubi.c
> @@ -328,3 +328,74 @@ BAREBOX_CMD_START(ubirmvol)
>  	BAREBOX_CMD_GROUP(CMD_GRP_PART)
>  	BAREBOX_CMD_HELP(cmd_ubirmvol_help)
>  BAREBOX_CMD_END
> +
> +	ret = ioctl(fd, UBI_IOCGETUBINUM, &ubi_num);
> +	if (ret) {
> +		perror("failed to get the ubi num");
> +		return COMMAND_ERROR_USAGE;
> +	}
> +	close(fd);
> +
> +	for(i=2, j=0; i<argc; ++j, i+=2) {

Please add a space pn both sides of binary operators.

> +		req.ents[j].vol_id = get_vol_id(ubi_num, argv[i]);
> +		if(req.ents[j].vol_id < 0) {
> +			printf("'%s' is not a volume name.\n", argv[i]);

It is a volume name, but not a valid one. Better something like

			printf("Volume '%s' does not exist on %s\n", argv[i], argv[1]);

?

> +			return COMMAND_ERROR_USAGE;
> +		}
> +		strncpy(req.ents[j].name, argv[i+1], UBI_MAX_VOLUME_NAME);
> +		req.ents[j].name_len = strlen(req.ents[j].name);
> +	}
> +
> +	ret = ubi_api_rename_volumes(ubi_num, &req);
> +	if (ret)
> +		perror("failed to rename.");

perror("failed to rename: %s", strerror(-ret));

It's always nice to print the error reason if we can.

Sascha

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