fix hostapd race condition which breaks wpa with madwifi

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13075 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/hostapd/patches/100-madwifi_fix.patch b/package/hostapd/patches/100-madwifi_fix.patch
new file mode 100644 (file)
index 0000000..45e9023
--- /dev/null
+++ b/package/hostapd/patches/100-madwifi_fix.patch
@@ -0,0 +1,27 @@
+--- a/hostapd/driver_madwifi.c
++++ b/hostapd/driver_madwifi.c
+@@ -298,6 +298,7 @@ madwifi_set_iface_flags(void *priv, int 
+ {
+       struct madwifi_driver_data *drv = priv;
+       struct ifreq ifr;
++      short flags;
+ 
+       wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
+ 
+@@ -312,10 +313,14 @@ madwifi_set_iface_flags(void *priv, int 
+               return -1;
+       }
+ 
++      flags = ifr.ifr_flags;
+       if (dev_up)
+-              ifr.ifr_flags |= IFF_UP;
++              flags |= IFF_UP;
+       else
+-              ifr.ifr_flags &= ~IFF_UP;
++              flags &= ~IFF_UP;
++
++      if (flags == ifr.ifr_flags)
++              return 0;
+ 
+       if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
+               perror("ioctl[SIOCSIFFLAGS]");