qed: Fix to use list_for_each_entry_safe() when delete items

Since we will remove items off the list using list_del() we need
to use a safe version of the list_for_each_entry() macro aptly named
list_for_each_entry_safe().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index a6db107..02a8be2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -1517,7 +1517,7 @@
 static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
 {
 	struct qed_ll2_info ll2_info;
-	struct qed_ll2_buffer *buffer;
+	struct qed_ll2_buffer *buffer, *tmp_buffer;
 	enum qed_ll2_conn_type conn_type;
 	struct qed_ptt *p_ptt;
 	int rc, i;
@@ -1587,7 +1587,7 @@
 
 	/* Post all Rx buffers to FW */
 	spin_lock_bh(&cdev->ll2->lock);
-	list_for_each_entry(buffer, &cdev->ll2->list, list) {
+	list_for_each_entry_safe(buffer, tmp_buffer, &cdev->ll2->list, list) {
 		rc = qed_ll2_post_rx_buffer(QED_LEADING_HWFN(cdev),
 					    cdev->ll2->handle,
 					    buffer->phys_addr, 0, buffer, 1);