netdev - [net-next-2.6 PATCH 6/7] enic: Check if rq/wq buf not NULL before freeing them

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Date:	Tue, 10 Aug 2010 21:55:20 -0700
From:	Roopa Prabhu <roprabhu@...co.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [net-next-2.6 PATCH 6/7] enic: Check if rq/wq buf not NULL before
	freeing them

From: Roopa Prabhu <roprabhu@...co.com>



Signed-off-by: Scott Feldman <scofeldm@...co.com>
Signed-off-by: Roopa Prabhu <roprabhu@...co.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@...co.com>
---
 drivers/net/enic/vnic_rq.c |    6 ++++--
 drivers/net/enic/vnic_wq.c |    6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)


diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index dbb2aca..b236d7c 100644
--- a/drivers/net/enic/vnic_rq.c
+++ b/drivers/net/enic/vnic_rq.c
@@ -77,8 +77,10 @@ void vnic_rq_free(struct vnic_rq *rq)
 	vnic_dev_free_desc_ring(vdev, &rq->ring);
 
 	for (i = 0; i < VNIC_RQ_BUF_BLKS_MAX; i++) {
-		kfree(rq->bufs[i]);
-		rq->bufs[i] = NULL;
+		if (rq->bufs[i]) {
+			kfree(rq->bufs[i]);
+			rq->bufs[i] = NULL;
+		}
 	}
 
 	rq->ctrl = NULL;
diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c
index 122e33b..4b2a6c6 100644
--- a/drivers/net/enic/vnic_wq.c
+++ b/drivers/net/enic/vnic_wq.c
@@ -77,8 +77,10 @@ void vnic_wq_free(struct vnic_wq *wq)
 	vnic_dev_free_desc_ring(vdev, &wq->ring);
 
 	for (i = 0; i < VNIC_WQ_BUF_BLKS_MAX; i++) {
-		kfree(wq->bufs[i]);
-		wq->bufs[i] = NULL;
+		if (wq->bufs[i]) {
+			kfree(wq->bufs[i]);
+			wq->bufs[i] = NULL;
+		}
 	}
 
 	wq->ctrl = NULL;

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