Re: [PATCH] remoteproc: elf_loader: redundant check remove

[Bjorn Andersson]

On Sun, Oct 13, 2024 at 10:48:20PM GMT, anish kumar wrote:
> offset will always be positive number and adding
> and comparing to the same variable 'size' will
> always result in check being false always.
> Remove this superfluous check.
> 

What if offset + size overflows?

Regards,
Bjorn

> Signed-off-by: anish kumar <yesanishhere@xxxxxxxxx>
> ---
>  drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
> index 94177e416047..c6d893e9c15e 100644
> --- a/drivers/remoteproc/remoteproc_elf_loader.c
> +++ b/drivers/remoteproc/remoteproc_elf_loader.c
> @@ -278,7 +278,7 @@ find_table(struct device *dev, const struct firmware *fw)
>  		table = (struct resource_table *)(elf_data + offset);
>  
>  		/* make sure we have the entire table */
> -		if (offset + size > fw_size || offset + size < size) {
> +		if (offset + size > fw_size) {
>  			dev_err(dev, "resource table truncated\n");
>  			return NULL;
>  		}
> -- 
> 2.39.3 (Apple Git-146)
>