From 2136f480202cc55dd10ab0f196a84028415a8da3 Mon Sep 17 00:00:00 2001
From: Masashi Honma <honma@ictec.co.jp>
Date: Fri, 17 Dec 2010 13:55:13 +0200
Subject: [PATCH] nl80211: Stop driver init sooner if the interface does not
 exist

---
 src/drivers/driver_nl80211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 0258d35cf..a3852249d 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -1927,7 +1927,8 @@ wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
 			       1, IF_OPER_DORMANT);
 #endif /* HOSTAPD */
 
-	linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr);
+	if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
+		return -1;
 
 	if (nl80211_register_action_frames(drv) < 0) {
 		wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "