RE: [patch] RDMA/ocrdma: off by one in ocrdma_query_gid()

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Acked-by: Selvin Xavier <selvin.xavier@xxxxxxxxxx>

Thanks !

> -----Original Message-----
> From: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx]
> Sent: Monday, February 16, 2015 3:32 PM
> To: Roland Dreier
> Cc: Sean Hefty; Hal Rosenstock; Devesh Sharma; Selvin Xavier; Mitesh Ahuja;
> Yishai Hadas; linux-rdma@xxxxxxxxxxxxxxx; kernel-janitors@xxxxxxxxxxxxxxx
> Subject: [patch] RDMA/ocrdma: off by one in ocrdma_query_gid()
> 
> The ->sgid_tbl[] array has OCRDMA_MAX_SGID number of elements so this
> test is off by one.  ->sgid_tbl is allocated in ocrdma_alloc_resources().
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> 
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> index fb8d8c4..18ea619 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> @@ -53,7 +53,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
> 
>  	dev = get_ocrdma_dev(ibdev);
>  	memset(sgid, 0, sizeof(*sgid));
> -	if (index > OCRDMA_MAX_SGID)
> +	if (index >= OCRDMA_MAX_SGID)
>  		return -EINVAL;
> 
>  	memcpy(sgid, &dev->sgid_tbl[index], sizeof(*sgid));
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