netdev - [PATCH net-2.6] bnx2x: protect sequence increment with mutex

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Message-ID: <1306335351.15327.0.camel@lb-tlvb-dmitry>
Date:	Wed, 25 May 2011 17:55:51 +0300
From:	"Dmitry Kravkov" <dmitry@...adcom.com>
To:	davem@...emloft.net,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
cc:	"Eilon Greenstein" <eilong@...adcom.com>
Subject: [PATCH net-2.6] bnx2x: protect sequence increment with mutex


Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
 drivers/net/bnx2x/bnx2x_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index a97d9be..4b70311 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));
 
-- 
1.7.2.2




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