enic: Check if rq/wq buf not NULL before freeing them

Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Aug 17, 2010 · 8321779 · 8321779
1 parent ce16cc0
commit 8321779
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git 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
@@ -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;