diff mbox series

[3/3,net] ibmvnic: Allocate and request vpd in init_resources

Message ID 86473275-9dd0-c949-fb6a-d752bf607332@linux.vnet.ibm.com
State Superseded, archived
Delegated to: David Miller
Headers show
Series ibmvnic: Reset behavior fixes | expand

Commit Message

John Allen Jan. 15, 2018, 9:13 p.m. UTC
In reset events in which our memory allocations need to be reallocated,
VPD data is being freed, but never reallocated. This can cause issues if
we later attempt to access that memory or reset and attempt to free the
memory. This patch moves the allocation of the VPD data to init_resources
so that it will be symmetrically freed during release resources.

Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
---
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index bb56460..f0dbb76 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -867,7 +867,7 @@  static int ibmvnic_get_vpd(struct ibmvnic_adapter *adapter)
 	if (adapter->vpd->buff)
 		len = adapter->vpd->len;

-	reinit_completion(&adapter->fw_done);
+	init_completion(&adapter->fw_done);
 	crq.get_vpd_size.first = IBMVNIC_CRQ_CMD;
 	crq.get_vpd_size.cmd = GET_VPD_SIZE;
 	ibmvnic_send_crq(adapter, &crq);
@@ -929,6 +929,13 @@  static int init_resources(struct ibmvnic_adapter *adapter)
 	if (!adapter->vpd)
 		return -ENOMEM;

+	/* Vital Product Data (VPD) */
+	rc = ibmvnic_get_vpd(adapter);
+	if (rc) {
+		netdev_err(netdev, "failed to initialize Vital Product Data (VPD)\n");
+		return rc;
+	}
+
 	adapter->map_id = 1;
 	adapter->napi = kcalloc(adapter->req_rx_queues,
 				sizeof(struct napi_struct), GFP_KERNEL);
@@ -1002,7 +1009,7 @@  static int __ibmvnic_open(struct net_device *netdev)
 static int ibmvnic_open(struct net_device *netdev)
 {
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
-	int rc, vpd;
+	int rc;

 	mutex_lock(&adapter->reset_lock);

@@ -1030,11 +1037,6 @@  static int ibmvnic_open(struct net_device *netdev)
 	rc = __ibmvnic_open(netdev);
 	netif_carrier_on(netdev);

-	/* Vital Product Data (VPD) */
-	vpd = ibmvnic_get_vpd(adapter);
-	if (vpd)
-		netdev_err(netdev, "failed to initialize Vital Product Data (VPD)\n");
-
 	mutex_unlock(&adapter->reset_lock);

 	return rc;