From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Tue, 24 Oct 2017 21:19:46 +0000 (-0500)
Subject: net/bnxt: fix a potential null pointer dereference
X-Git-Tag: spdx-start~1102
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=1498060ffb60b5faea6c6b01c36780c1732af127

net/bnxt: fix a potential null pointer dereference

Fix a potential null pointer reported by Coverity.

Coverity issue: 195001
Fixes: 5ef3b79fdfe6 ("net/bnxt: support flow filter ops")

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 15ef0b2a2a..9065a12dfc 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1728,10 +1728,12 @@ bnxt_match_and_validate_ether_filter(struct bnxt *bp,
 		RTE_LOG(ERR, PMD, "unsupported ether_type(0x%04x) in"
 			" ethertype filter.", efilter->ether_type);
 		*ret = -EINVAL;
+		goto exit;
 	}
 	if (efilter->queue >= bp->rx_nr_rings) {
 		RTE_LOG(ERR, PMD, "Invalid queue %d\n", efilter->queue);
 		*ret = -EINVAL;
+		goto exit;
 	}
 
 	vnic0 = STAILQ_FIRST(&bp->ff_pool[0]);
@@ -1739,6 +1741,7 @@ bnxt_match_and_validate_ether_filter(struct bnxt *bp,
 	if (vnic == NULL) {
 		RTE_LOG(ERR, PMD, "Invalid queue %d\n", efilter->queue);
 		*ret = -EINVAL;
+		goto exit;
 	}
 
 	if (efilter->flags & RTE_ETHTYPE_FLAGS_DROP) {
@@ -1767,6 +1770,7 @@ bnxt_match_and_validate_ether_filter(struct bnxt *bp,
 	if (match)
 		*ret = -EEXIST;
 
+exit:
 	return mfilter;
 }