[dpdk-dev] [dpdk-dev PATCH] raw/octeontx2_ep: fix coverity scan reported defects

[Mahipal Challa]

Defects reported by coverity scan are resolved.
Coverity issue: CID 353611 - Error handling.
Coverity issue: CID 353622 - Error handling.
Coverity issue: CID 353632 - NULL pointer dereference.

Signed-off-by: Mahipal Challa <mcha...@marvell.com>
---
 drivers/raw/octeontx2_ep/otx2_ep_enqdeq.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/raw/octeontx2_ep/otx2_ep_enqdeq.c 
b/drivers/raw/octeontx2_ep/otx2_ep_enqdeq.c
index 1ba27c9..9f1e5ed 100644
--- a/drivers/raw/octeontx2_ep/otx2_ep_enqdeq.c
+++ b/drivers/raw/octeontx2_ep/otx2_ep_enqdeq.c
@@ -257,8 +257,8 @@
        void *buf;
 
        for (idx = 0; idx < droq->nb_desc; idx++) {
-               rte_mempool_get(sdpvf->enqdeq_mpool, &buf);
-               if (buf == NULL) {
+               if (rte_mempool_get(sdpvf->enqdeq_mpool, &buf) ||
+                   (buf == NULL)) {
                        otx2_err("OQ buffer alloc failed");
                        droq->stats.rx_alloc_failure++;
                        /* sdp_droq_destroy_ring_buffers(droq);*/
@@ -662,11 +662,11 @@
                if (droq->recv_buf_list[droq->refill_idx].buffer != NULL)
                        break;
 
-               rte_mempool_get(sdpvf->enqdeq_mpool, &buf);
-               /* If a buffer could not be allocated, no point in
-                * continuing
-                */
-               if (buf == NULL) {
+               if (rte_mempool_get(sdpvf->enqdeq_mpool, &buf) ||
+                   (buf == NULL)) {
+                       /* If a buffer could not be allocated, no point in
+                        * continuing
+                        */
                        droq->stats.rx_alloc_failure++;
                        break;
                }
@@ -780,7 +780,7 @@
        droq = sdpvf->droq[q_no];
        if (!droq) {
                otx2_err("Invalid droq[%d]", q_no);
-               goto deq_fail;
+               goto droq_err;
        }
 
        /* Grab the lock */
@@ -840,5 +840,7 @@
 
 deq_fail:
        rte_spinlock_unlock(&droq->lock);
+
+droq_err:
        return SDP_OQ_RECV_FAILED;
 }
-- 
1.8.3.1