[PATCH net-next] cxgb4: Initialize mbox lock and list for mgmt dev
From: Ganesh Goudar <hidden>
Date: 2017-01-12 06:53:24
Subsystem:
cxgb4 ethernet driver (cxgb4), networking drivers, the rest · Maintainers:
Potnuri Bharat Teja, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Initialize mbox lock and list for mgmt dev to avoid NULL pointer dereference when cxgb_set_vf_mac is called. And also allocate memory for private data while allocating mgmt netdev. Signed-off-by: Ganesh Goudar <redacted> --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 3349e1f..e95bb6a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c@@ -4516,7 +4516,8 @@ static int config_mgmt_dev(struct pci_dev *pdev) int err; snprintf(name, IFNAMSIZ, "mgmtpf%d%d", adap->adap_idx, adap->pf); - netdev = alloc_netdev(0, name, NET_NAME_UNKNOWN, dummy_setup); + netdev = alloc_netdev(sizeof(struct port_info), name, NET_NAME_UNKNOWN, + dummy_setup); if (!netdev) return -ENOMEM;
@@ -4990,6 +4991,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) err = -ENOMEM; goto free_adapter; } + spin_lock_init(&adapter->mbox_lock); + INIT_LIST_HEAD(&adapter->mlist.list); pci_set_drvdata(pdev, adapter); return 0;
--
2.1.0