From f7db2beb4c2c6cc8111f5ab90fc7363ca91107b6 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 18 Dec 2018 15:19:47 +0000
Subject: [PATCH] vxge: ensure data0 is initialized in when fetching firmware version information
Git-commit: f7db2beb4c2c6cc8111f5ab90fc7363ca91107b6
Patch-mainline: v4.20
References: bsc#1051510
Currently variable data0 is not being initialized so a garbage value is
being passed to vxge_hw_vpath_fw_api and this value is being written to
the rts_access_steer_data0 register. There are other occurrances where
data0 is being initialized to zero (e.g. in function
vxge_hw_upgrade_read_version) so I think it makes sense to ensure data0
is initialized likewise to 0.
Detected by CoverityScan, CID#140696 ("Uninitialized scalar variable")
Fixes: 8424e00dfd52 ("vxge: serialize access to steering control register")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/ethernet/neterion/vxge/vxge-config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index 4c1fb7e57888..7cde387e5ec6 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -808,7 +808,7 @@ __vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
- u64 data0, data1 = 0, steer_ctrl = 0;
+ u64 data0 = 0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
status = vxge_hw_vpath_fw_api(vpath,
--
2.16.4