wl1251: fix NULL pointer dereference

wl1251: fix NULL pointer dereference

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Reported-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ti/wl1251/event.c b/drivers/net/wireless/ti/wl1251/event.c
index 192cebd120d8d4da805f94353f814e5bae1cb33b..db0105313745f08a02c9d408564c5d8029aa05ca 100644 (file)
--- a/drivers/net/wireless/ti/wl1251/event.c
+++ b/drivers/net/wireless/ti/wl1251/event.c
@@ -124,7 +124,7 @@ static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox)
                        return ret;
        }
 
-       if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID) {
+       if (wl->vif && vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID) {
                wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT");
 
                /* indicate to the stack, that beacons have been lost */