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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Navid Emamdoost <navid.emamdoost@gmail.com>
Cc: leon@kernel.org, emamd001@umn.edu, smccaman@umn.edu,
	kjlu@umn.edu, Potnuri Bharat Teja <bharat@chelsio.com>,
	Doug Ledford <dledford@redhat.com>,
	linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] RDMA: release allocated skb
Date: Tue, 1 Oct 2019 10:54:30 -0300	[thread overview]
Message-ID: <20191001135430.GA27086@ziepe.ca> (raw)
In-Reply-To: <20190923155300.20407-1-navid.emamdoost@gmail.com>

On Mon, Sep 23, 2019 at 10:52:59AM -0500, Navid Emamdoost wrote:
> In create_cq, the allocated skb buffer needs to be released on error
> path.
> Moved the kfree_skb(skb) under err4 label.

This didn't move anything
 
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
>  drivers/infiniband/hw/cxgb4/cq.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
> index b1bb61c65f4f..1886c1af10bc 100644
> +++ b/drivers/infiniband/hw/cxgb4/cq.c
> @@ -173,6 +173,7 @@ static int create_cq(struct c4iw_rdev *rdev, struct t4_cq *cq,
>  err4:
>  	dma_free_coherent(&rdev->lldi.pdev->dev, cq->memsize, cq->queue,
>  			  dma_unmap_addr(cq, mapping));
> +	kfree_skb(skb);
>  err3:
>  	kfree(cq->sw_queue);
>  err2:

This looks wrong to me:

int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb)
{
	int	error = 0;

	if (c4iw_fatal_error(rdev)) {
		kfree_skb(skb);
		pr_err("%s - device in error state - dropping\n", __func__);
		return -EIO;
	}
	error = cxgb4_ofld_send(rdev->lldi.ports[0], skb);
	if (error < 0)
		kfree_skb(skb);
	return error < 0 ? error : 0;
}

Jason

  reply	other threads:[~2019-10-01 13:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190923050823.GL14368@unreal>
2019-09-23 15:52 ` [PATCH v2] RDMA: release allocated skb Navid Emamdoost
2019-10-01 13:54   ` Jason Gunthorpe [this message]
2019-10-02 21:35     ` Navid Emamdoost
2019-10-03  8:20       ` Leon Romanovsky
2019-10-03 10:25       ` Potnuri Bharat Teja
2019-10-04 18:12         ` Navid Emamdoost

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