Re: [PATCH 1/2] net/mlx4_core: clean up cq_res_start_move_to()
From: Jack Morgenstein
Date: Tue Jan 14 2014 - 01:48:05 EST
This time, replying to the list as well.
-Jack
P.S. sorry for the delay, I was swamped.
On Tue, 07 Jan 2014 14:01:18 +0100
Paul Bolle <pebolle@xxxxxxxxxx> wrote:
> + } else {
> + /* state == RES_CQ_HW */
> + if (r->com.state != RES_CQ_ALLOCATED)
if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED)
to protect against any bad calls to this function
(although I know that currently there are none).
This also preserves the behavior of the switch statement.
> err = -EINVAL;
> - }
> + else
> + err = 0;
> + }
>
> - if (!err) {
> - r->com.from_state = r->com.state;
> - r->com.to_state = state;
> - r->com.state = RES_CQ_BUSY;
> - if (cq)
> - *cq = r;
> - }
> + if (!err) {
> + r->com.from_state = r->com.state;
> + r->com.to_state = state;
> + r->com.state = RES_CQ_BUSY;
Please keep the "if" here. Protects against (future) bad calls.
> + *cq = r;
> }
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