From: Rick Farrington <ricardo.farrington@cavium.com>
Date: Mon, 17 Jul 2017 17:51:37 -0700
Subject: liquidio: lowmem: init allocated memory to 0
Patch-mainline: v4.14-rc1
Git-commit: 2c4aac74a9f28e0431f5335401d5fc8f744fa1e1
References: bsc#1067126

For defensive programming, zero the allocated block 'oct->droq[0]' in
octeon_setup_output_queues() and 'oct->instr_queue[0]' in
octeon_setup_instr_queues().

Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/cavium/liquidio/octeon_device.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
@@ -876,11 +876,11 @@ int octeon_setup_instr_queues(struct oct
 
 	oct->num_iqs = 0;
 
-	oct->instr_queue[0] = vmalloc_node(sizeof(*oct->instr_queue[0]),
+	oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]),
 				numa_node);
 	if (!oct->instr_queue[0])
 		oct->instr_queue[0] =
-			vmalloc(sizeof(struct octeon_instr_queue));
+			vzalloc(sizeof(struct octeon_instr_queue));
 	if (!oct->instr_queue[0])
 		return 1;
 	memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue));
@@ -923,9 +923,9 @@ int octeon_setup_output_queues(struct oc
 		desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf));
 	}
 	oct->num_oqs = 0;
-	oct->droq[0] = vmalloc_node(sizeof(*oct->droq[0]), numa_node);
+	oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node);
 	if (!oct->droq[0])
-		oct->droq[0] = vmalloc(sizeof(*oct->droq[0]));
+		oct->droq[0] = vzalloc(sizeof(*oct->droq[0]));
 	if (!oct->droq[0])
 		return 1;