mac80211: make sure hw_key exists before checking its flags
Fixes a bug introduced in:
commit 077a9154898b374f20555adc3f620cccd02581d6
Author: Arik Nemtsov <arik@wizery.com>
Date: Sun Oct 23 08:21:41 2011 +0200
Reported-by: Arend van Spriel <arend@broadcom.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 13efab5..106e15a 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -415,7 +415,8 @@
memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
/* the HW only needs room for the IV, but not the actual IV */
- if (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)
+ if (info->control.hw_key &&
+ (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
return 0;
hdr = (struct ieee80211_hdr *) pos;