From: Rick Farrington <ricardo.farrington@cavium.com>
Date: Mon, 17 Jul 2017 17:50:47 -0700
Subject: liquidio: lowmem: init allocated memory to 0
Patch-mainline: v4.14-rc1
Git-commit: 00587f2fa70866a2c3425ee799c91657b4717b7c
References: bsc#1067126
Fix GPF in octeon_init_droq(); zero the allocated block 'recv_buf_list'.
This prevents a GPF trying to access an invalid 'recv_buf_list[i]' entry
in octeon_droq_destroy_ring_buffers() if init didn't alloc all entries.
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_droq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
@@ -275,12 +275,12 @@ int octeon_init_droq(struct octeon_devic
droq->max_count);
droq->recv_buf_list = (struct octeon_recv_buffer *)
- vmalloc_node(droq->max_count *
+ vzalloc_node(droq->max_count *
OCT_DROQ_RECVBUF_SIZE,
numa_node);
if (!droq->recv_buf_list)
droq->recv_buf_list = (struct octeon_recv_buffer *)
- vmalloc(droq->max_count *
+ vzalloc(droq->max_count *
OCT_DROQ_RECVBUF_SIZE);
if (!droq->recv_buf_list) {
dev_err(&oct->pci_dev->dev, "Output queue recv buf list alloc failed\n");