wpa_supplicant: Remove pending sme-connect radio work

If a new connection is attempted while there is a pending sme-connection
radio work, cancel the pending radio work and continue with the new
connection attempt. This is preferable over rejecting the new work and
continuing with the pending one, as it is possible that the previous
work is no longer valid.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>

wpa_supplicant/sme.c

@@ -477,8 +477,14 @@ void sme_authenticate(struct wpa_supplicant *wpa_s,
 	}
 
 	if (radio_work_pending(wpa_s, "sme-connect")) {
-		wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reject sme_authenticate() call since pending work exist");
-		return;
+		/*
+		 * The previous sme-connect work might no longer be valid due to
+		 * the fact that the BSS list was updated. In addition, it makes
+		 * sense to adhere to the 'newer' decision.
+		 */
+		wpa_dbg(wpa_s, MSG_DEBUG,
+			"SME: Remove previous pending sme-connect");
+		radio_remove_works(wpa_s, "sme-connect", 0);
 	}
 
 	cwork = os_zalloc(sizeof(*cwork));