From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Wed, 25 May 2011 04:55:51 +0000 (+0000)
Subject: bnx2x: protect sequence increment with mutex
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a5971d43ef76f4b73c58e2d893de9db487388c87;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

bnx2x: protect sequence increment with mutex

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index a97d9be331d1..4b70311a11ef 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -2222,12 +2222,13 @@ static void bnx2x_pmf_update(struct bnx2x *bp)
 u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param)
 {
 	int mb_idx = BP_FW_MB_IDX(bp);
-	u32 seq = ++bp->fw_seq;
+	u32 seq;
 	u32 rc = 0;
 	u32 cnt = 1;
 	u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
 
 	mutex_lock(&bp->fw_mb_mutex);
+	seq = ++bp->fw_seq;
 	SHMEM_WR(bp, func_mb[mb_idx].drv_mb_param, param);
 	SHMEM_WR(bp, func_mb[mb_idx].drv_mb_header, (command | seq));