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RDMA/nes: checking for NULL instead of IS_ERR

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nes_reg_phys_mr() returns ERR_PTRs on error.  It doesn't return NULL.

This bug has been there for a while, but we recently changed from
calling a function pointer to calling nes_reg_phys_mr() directly so now
Smatch is able to detect the bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dan Carpenter 2016-01-12 12:27:43 +03:00 committed by Doug Ledford
parent fbbeb8632b
commit bc1251e6d9
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/nes/nes_cm.c
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@ -3320,14 +3320,14 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
nesqp->ietf_frame_pbase + mpa_frame_offset,
buff_len, IB_ACCESS_LOCAL_WRITE,
&tagged_offset);
if (!ibmr) {
if (IS_ERR(ibmr)) {
nes_debug(NES_DBG_CM, "Unable to register memory region"
"for lSMM for cm_node = %p \n",
cm_node);
pci_free_consistent(nesdev->pcidev,
nesqp->private_data_len + nesqp->ietf_frame_size,
nesqp->ietf_frame, nesqp->ietf_frame_pbase);
return -ENOMEM;
return PTR_ERR(ibmr);
}
ibmr->pd = &nespd->ibpd;