From: Felix Manlunas <felix.manlunas@cavium.com>
Date: Tue, 21 Mar 2017 02:04:48 +0000 (-0700)
Subject: liquidio: fix Coverity scan errors
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=58ad3198342bda5eeb97c070dde76335bf0b7203;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

liquidio: fix Coverity scan errors

Fix Coverity scan errors by not dereferencing lio->glists_dma_base pointer
if it's NULL.

See http://marc.info/?l=linux-netdev&m=149002294305614&w=2

Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index b23485c3af13..0bc76ad96a17 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -712,7 +712,8 @@ static void delete_glists(struct lio *lio)
 				kfree(g);
 		} while (g);
 
-		if (lio->glists_virt_base && lio->glists_virt_base[i]) {
+		if (lio->glists_virt_base && lio->glists_virt_base[i] &&
+		    lio->glists_dma_base && lio->glists_dma_base[i]) {
 			lio_dma_free(lio->oct_dev,
 				     lio->glist_entry_size * lio->tx_qsize,
 				     lio->glists_virt_base[i],
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
index f72db33fcd3a..e03855b8d1f5 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
@@ -470,7 +470,8 @@ static void delete_glists(struct lio *lio)
 				kfree(g);
 		} while (g);
 
-		if (lio->glists_virt_base && lio->glists_virt_base[i]) {
+		if (lio->glists_virt_base && lio->glists_virt_base[i] &&
+		    lio->glists_dma_base && lio->glists_dma_base[i]) {
 			lio_dma_free(lio->oct_dev,
 				     lio->glist_entry_size * lio->tx_qsize,
 				     lio->glists_virt_base[i],