linux-kernel - Re: [PATCH][next] RDMA/mlx5: check for error return in flow

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Date:   Fri, 12 Apr 2019 19:00:16 +0000
From:   Jason Gunthorpe <jgg@...lanox.com>
To:     Colin King <colin.king@...onical.com>
CC:     Leon Romanovsky <leon@...nel.org>,
        Doug Ledford <dledford@...hat.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][next] RDMA/mlx5: check for error return in flow_rule
 rather than err

On Fri, Apr 12, 2019 at 11:40:17AM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently when the call to create_flow_rule_vport_sq fails, the error
> check is being performed on err rather than on the return pointer
> flow_rule.  The return flow_rule maybe NULL (which is not considered
> an error) or an error code, so check for the error on flow_rule.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: d5ed8ac34cef ("RDMA/mlx5: Move default representors SQ steering to rule to modify QP")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/infiniband/hw/mlx5/qp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to for-next, thanks

Jason