[ldv-project] [PATCH] RDMA: remove useless condition in siw_create_cq()
Bernard Metzler
BMT at zurich.ibm.com
Mon Jul 11 19:21:41 MSK 2022
> -----Original Message-----
> From: Andrey Strachuk <strochuk at ispras.ru>
> Sent: Monday, 11 July 2022 17:13
> To: Bernard Metzler <BMT at zurich.ibm.com>
> Cc: Andrey Strachuk <strochuk at ispras.ru>; Jason Gunthorpe <jgg at ziepe.ca>;
> Leon Romanovsky <leon at kernel.org>; linux-rdma at vger.kernel.org; linux-
> kernel at vger.kernel.org; ldv-project at linuxtesting.org
> Subject: [EXTERNAL] [PATCH] RDMA: remove useless condition in
> siw_create_cq()
>
> Comparison of 'cq' with NULL is useless since
> 'cq' is a result of container_of and cannot be NULL
> in any reasonable scenario.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Signed-off-by: Andrey Strachuk <strochuk at ispras.ru>
> Fixes: 303ae1cdfdf7 ("rdma/siw: application interface")
> ---
> drivers/infiniband/sw/siw/siw_verbs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/sw/siw/siw_verbs.c
> b/drivers/infiniband/sw/siw/siw_verbs.c
> index 09316072b789..8dedae7ae79e 100644
> --- a/drivers/infiniband/sw/siw/siw_verbs.c
> +++ b/drivers/infiniband/sw/siw/siw_verbs.c
> @@ -1167,7 +1167,7 @@ int siw_create_cq(struct ib_cq *base_cq, const struct
> ib_cq_init_attr *attr,
> err_out:
> siw_dbg(base_cq->device, "CQ creation failed: %d", rv);
>
> - if (cq && cq->queue) {
> + if (cq->queue) {
> struct siw_ucontext *ctx =
> rdma_udata_to_drv_context(udata, struct siw_ucontext,
> base_ucontext);
> --
> 2.25.1
Acked-by: Bernard Metzler <bmt at zurich.ibm.com>
Thanks Andrey!
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