iwinfo: continue scanning even if temporary mac cannot be changed

So far iwinfo aborted a wifi scan attempt if the mac of the spawned
interface could not be changed. Change the code to try anyway - this
should fix wifi scanning on RaLink devices.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41826 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/network/utils/iwinfo/Makefile

@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libiwinfo
-PKG_RELEASE:=49
+PKG_RELEASE:=50
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 PKG_CONFIG_DEPENDS := \

package/network/utils/iwinfo/src/iwinfo_nl80211.c

@@ -2003,8 +2003,7 @@ static int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
 			if (!(res = nl80211_ifadd(ifname)))
 				goto out;
 
-			if (!iwinfo_ifmac(res))
-				goto out;
+			iwinfo_ifmac(res);
 
 			/* if we can take the new interface up, the driver supports an
 			 * additional interface and there's no need to tear down the ap */

package/network/utils/iwinfo/src/iwinfo_utils.c

@@ -113,6 +113,7 @@ int iwinfo_ifmac(const char *ifname)
 	if (iwinfo_ioctl(SIOCGIFHWADDR, &ifr))
 		return 0;
 
+	ifr.ifr_hwaddr.sa_data[0] |= 0x02;
 	ifr.ifr_hwaddr.sa_data[1]++;
 	ifr.ifr_hwaddr.sa_data[2]++;