libcxgbi: fix freeing skb prematurely
authorKaren Xie <kxie@chelsio.com>
Fri, 12 Dec 2014 03:13:47 +0000 (19:13 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 12 Dec 2014 16:22:30 +0000 (11:22 -0500)
With debug turned on the debug print would access the skb after it is freed.
Fix it to free the skb after the debug print.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/scsi/cxgbi/libcxgbi.c

index 7da59c3..eb58afc 100644 (file)
@@ -2294,10 +2294,12 @@ int cxgbi_conn_xmit_pdu(struct iscsi_task *task)
                return err;
        }
 
-       kfree_skb(skb);
        log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
                "itt 0x%x, skb 0x%p, len %u/%u, xmit err %d.\n",
                task->itt, skb, skb->len, skb->data_len, err);
+
+       kfree_skb(skb);
+
        iscsi_conn_printk(KERN_ERR, task->conn, "xmit err %d.\n", err);
        iscsi_conn_failure(task->conn, ISCSI_ERR_XMIT_FAILED);
        return err;