[U-Boot] [PATCH 06/10] dfu: Fix crash when wrong number of arguments given
Lukasz Majewski
l.majewski at samsung.com
Wed Nov 28 16:17:14 CET 2012
Hi Pantelis,
> Fix obvious crash when not enough arguments are given to the dfu
> command.
>
> Signed-off-by: Pantelis Antoniou <panto at antoniou-consulting.com>
> ---
> common/cmd_dfu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/common/cmd_dfu.c b/common/cmd_dfu.c
> index 327c738..83ef324 100644
> --- a/common/cmd_dfu.c
> +++ b/common/cmd_dfu.c
> @@ -50,7 +50,7 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int
> argc, char * const argv[]) if (ret)
> return CMD_RET_FAILURE;
>
> - if (strcmp(argv[3], "list") == 0) {
> + if (argc > 3 && strcmp(argv[3], "list") == 0) {
I'd add the (argc > 4) to the very beginning check:
if (argc < 3 || argc > 4)
return CMD_RET_USAGE;
and leave below code unchanged:
if (strcmp(argv[3], "list") == 0) {
dfu_show_entities();
goto done;
}
> dfu_show_entities();
> goto done;
> }
--
Best regards,
Lukasz Majewski
Samsung Poland R&D Center | Linux Platform Group
More information about the U-Boot
mailing list