wl1271: Fix warning when disconnecting and ad-hoc network

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1271_main.c

@@ -938,6 +938,7 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
 	WARN_ON(wl->state != WL1271_STATE_ON);
 
 	/* enable dyn ps just in case (if left on due to fw crash etc) */
+	if (wl->bss_type == BSS_TYPE_STA_BSS)
 		ieee80211_disable_dyn_ps(wl->vif, false);
 
 	if (test_and_clear_bit(WL1271_FLAG_SCANNING, &wl->flags)) {