[BNX2]: Zero out context memory for 5709.

We should zero out the context memory for 5709 before each reset.  When
we resume after suspend for example, the memory may not be zero and the
chip may not function correctly.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
---
 drivers/net/bnx2.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index b5560a9..d3d3342 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -2220,6 +2220,11 @@ bnx2_init_5709_context(struct bnx2 *bp)
 	for (i = 0; i < bp->ctx_pages; i++) {
 		int j;
 
+		if (bp->ctx_blk[i])
+			memset(bp->ctx_blk[i], 0, BCM_PAGE_SIZE);
+		else
+			return -ENOMEM;
+
 		REG_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,
 		       (bp->ctx_blk_mapping[i] & 0xffffffff) |
 		       BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);
-- 
1.5.5.GIT



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