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path: root/drivers/net/ethernet/ibm/ibmvnic.c
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-rw-r--r--drivers/net/ethernet/ibm/ibmvnic.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 1463cf432..646f14a9b 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -884,12 +884,22 @@ static int ibmvnic_login(struct net_device *netdev)
static void release_login_buffer(struct ibmvnic_adapter *adapter)
{
+ if (!adapter->login_buf)
+ return;
+
+ dma_unmap_single(&adapter->vdev->dev, adapter->login_buf_token,
+ adapter->login_buf_sz, DMA_TO_DEVICE);
kfree(adapter->login_buf);
adapter->login_buf = NULL;
}
static void release_login_rsp_buffer(struct ibmvnic_adapter *adapter)
{
+ if (!adapter->login_rsp_buf)
+ return;
+
+ dma_unmap_single(&adapter->vdev->dev, adapter->login_rsp_buf_token,
+ adapter->login_rsp_buf_sz, DMA_FROM_DEVICE);
kfree(adapter->login_rsp_buf);
adapter->login_rsp_buf = NULL;
}
@@ -4061,11 +4071,6 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq,
struct ibmvnic_login_buffer *login = adapter->login_buf;
int i;
- dma_unmap_single(dev, adapter->login_buf_token, adapter->login_buf_sz,
- DMA_TO_DEVICE);
- dma_unmap_single(dev, adapter->login_rsp_buf_token,
- adapter->login_rsp_buf_sz, DMA_FROM_DEVICE);
-
/* If the number of queues requested can't be allocated by the
* server, the login response will return with code 1. We will need
* to resend the login buffer with fewer queues requested.