ksmbd: fix

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

Author: namjaejeon

transport_tcp.c

@@ -544,14 +544,14 @@ static int create_socket(struct interface *iface)
 	return ret;
 }
 
-bool ksmbd_find_netdev_name_iface_list(char *netdev_name)
+struct interface *ksmbd_find_netdev_name_iface_list(char *netdev_name)
 {
 	struct interface *iface;
 
 	list_for_each_entry(iface, &iface_list, entry)
 		if (!strcmp(iface->name, netdev_name))
-			return true;
-	return false;
+			return iface;
+	return NULL;
 }
 
 static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
@@ -560,22 +560,21 @@ static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
 	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 	struct interface *iface;
 	int ret;
-	bool found = false;
 
 	switch (event) {
 	case NETDEV_UP:
 		if (netdev->priv_flags & IFF_BRIDGE_PORT)
 			return NOTIFY_OK;
 
-		found = ksmbd_find_netdev_name_iface_list(netdev->name);
-		if (found == true && iface->state == IFACE_STATE_DOWN) {
+		iface = ksmbd_find_netdev_name_iface_list(netdev->name);
+		if (iface && iface->state == IFACE_STATE_DOWN) {
 			ksmbd_debug(CONN, "netdev-up event: netdev(%s) is going up\n",
 					iface->name);
 			ret = create_socket(iface);
 			if (ret)
 				return NOTIFY_OK;
 		}
-		if (found == false && bind_additional_ifaces) {
+		if (!iface && bind_additional_ifaces) {
 			iface = alloc_iface(kstrdup(netdev->name, KSMBD_DEFAULT_GFP));
 			if (!iface)
 				return NOTIFY_OK;
@@ -587,21 +586,19 @@ static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
 		}
 		break;
 	case NETDEV_DOWN:
-		list_for_each_entry(iface, &iface_list, entry) {
-			if (!strcmp(iface->name, netdev->name) &&
-			    iface->state == IFACE_STATE_CONFIGURED) {
-				ksmbd_debug(CONN, "netdev-down event: netdev(%s) is going down\n",
-						iface->name);
-				tcp_stop_kthread(iface->ksmbd_kthread);
-				iface->ksmbd_kthread = NULL;
-				mutex_lock(&iface->sock_release_lock);
-				tcp_destroy_socket(iface->ksmbd_socket);
-				iface->ksmbd_socket = NULL;
-				mutex_unlock(&iface->sock_release_lock);
-
-				iface->state = IFACE_STATE_DOWN;
-				break;
-			}
+		iface = ksmbd_find_netdev_name_iface_list(netdev->name);
+		if (iface && iface->state == IFACE_STATE_CONFIGURED) {
+			ksmbd_debug(CONN, "netdev-down event: netdev(%s) is going down\n",
+					iface->name);
+			tcp_stop_kthread(iface->ksmbd_kthread);
+			iface->ksmbd_kthread = NULL;
+			mutex_lock(&iface->sock_release_lock);
+			tcp_destroy_socket(iface->ksmbd_socket);
+			iface->ksmbd_socket = NULL;
+			mutex_unlock(&iface->sock_release_lock);
+
+			iface->state = IFACE_STATE_DOWN;
+			break;
 		}
 		break;
 	}

transport_tcp.h

@@ -7,7 +7,7 @@
 #define __KSMBD_TRANSPORT_TCP_H__
 
 int ksmbd_tcp_set_interfaces(char *ifc_list, int ifc_list_sz);
-bool ksmbd_find_netdev_name_iface_list(char *netdev_name);
+struct interface *ksmbd_find_netdev_name_iface_list(char *netdev_name);
 int ksmbd_tcp_init(void);
 void ksmbd_tcp_destroy(void);