netdev - [PATCH] ibmvnic: fix to use list_for_each

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Date:	Sat, 18 Jun 2016 02:53:28 +0000
From:	weiyj_lk@....com
To:	Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>,
	John Allen <jallen@...ux.vnet.ibm.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] ibmvnic: fix to use list_for_each_safe() when delete items

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

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

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 864cb21..0b6a922 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3141,14 +3141,14 @@ static void handle_request_ras_comp_num_rsp(union ibmvnic_crq *crq,
 
 static void ibmvnic_free_inflight(struct ibmvnic_adapter *adapter)
 {
-	struct ibmvnic_inflight_cmd *inflight_cmd;
+	struct ibmvnic_inflight_cmd *inflight_cmd, *tmp1;
 	struct device *dev = &adapter->vdev->dev;
-	struct ibmvnic_error_buff *error_buff;
+	struct ibmvnic_error_buff *error_buff, *tmp2;
 	unsigned long flags;
 	unsigned long flags2;
 
 	spin_lock_irqsave(&adapter->inflight_lock, flags);
-	list_for_each_entry(inflight_cmd, &adapter->inflight, list) {
+	list_for_each_entry_safe(inflight_cmd, tmp1, &adapter->inflight, list) {
 		switch (inflight_cmd->crq.generic.cmd) {
 		case LOGIN:
 			dma_unmap_single(dev, adapter->login_buf_token,
@@ -3165,8 +3165,8 @@ static void ibmvnic_free_inflight(struct ibmvnic_adapter *adapter)
 			break;
 		case REQUEST_ERROR_INFO:
 			spin_lock_irqsave(&adapter->error_list_lock, flags2);
-			list_for_each_entry(error_buff, &adapter->errors,
-					    list) {
+			list_for_each_entry_safe(error_buff, tmp2,
+						 &adapter->errors, list) {
 				dma_unmap_single(dev, error_buff->dma,
 						 error_buff->len,
 						 DMA_FROM_DEVICE);