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>

2 files changed, 8 insertions, 4 deletions

diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c
index dbb2aca258b9..b236d7cbc137 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 122e33bcc578..4b2a6c6a569b 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;