From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Tue, 24 Oct 2017 21:19:48 +0000 (-0500)
Subject: net/bnxt: fix a potential null pointer dereference
X-Git-Tag: spdx-start~1100
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=90cdc91c12563019340c10f32dc0b35b39e5821f;p=dpdk.git

net/bnxt: fix a potential null pointer dereference

Coverity issue: 195017
Fixes: 5ef3b79fdfe6 ("net/bnxt: support flow filter ops")

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

diff --git a/drivers/net/bnxt/bnxt_filter.c b/drivers/net/bnxt/bnxt_filter.c
index af9ed9a623..65d30fb38f 100644
--- a/drivers/net/bnxt/bnxt_filter.c
+++ b/drivers/net/bnxt/bnxt_filter.c
@@ -793,6 +793,8 @@ bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
 	//This flow needs DST MAC which is not same as port/l2
 	RTE_LOG(DEBUG, PMD, "Create L2 filter for DST MAC\n");
 	filter1 = bnxt_get_unused_filter(bp);
+	if (filter1 == NULL)
+		return NULL;
 	filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
 	filter1->enables = HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
 			L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;