Re: [PATCH v2 2/2] RDMA/srp: Fix error return code in srp_parse_options()
From: Andy Shevchenko
Date: Sat Nov 26 2022 - 07:02:24 EST
On Sat, Nov 26, 2022 at 11:35:04AM +0800, Wang Yufen wrote:
> In the previous while loop, "ret" may be assigned zero, , so the error
> return code may be incorrectly set to 0 instead of -EINVAL.
> Add out_with_einval goto label and covert all "goto out;" to "goto
> out_with_einval:" where it's appropriate, alse investigate each case
> separately as Andy suggessted.
It's better now, though you missed something...
...
> case SRP_OPT_TARGET_CAN_QUEUE:
> - if (match_int(args, &token) || token < 1) {
> + ret = match_int(args, &token);
Check for ret?
> + if (token < 1) {
> pr_warn("bad max target_can_queue parameter '%s'\n",
> p);
> - goto out;
> + goto out_with_einval;
> }
> target->target_can_queue = token;
> break;
...
> target->scsi_host->can_queue);
The below can't be like this, right?
> +out_with_einval:
> + ret = -EINVAL;
> out:
> kfree(options);
> return ret;
--
With Best Regards,
Andy Shevchenko