libertas: do not confirm sleep if commands are pending

If the main thread gets one PS AWAKE event and one PS SLEEP event
in one iteration over event_fifo there will never be checks for
commands to be processed, since psstate will always be
PS_STATE_SLEEP or PS_STATE_PRE_SLEEP

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/marvell/libertas/cmdresp.c b/drivers/net/wireless/marvell/libertas/cmdresp.c
index 701125f..c95bf6d 100644 (file)
--- a/drivers/net/wireless/marvell/libertas/cmdresp.c
+++ b/drivers/net/wireless/marvell/libertas/cmdresp.c
@@ -257,6 +257,10 @@ int lbs_process_event(struct lbs_private *priv, u32 event)
                               "EVENT: in FULL POWER mode, ignoring PS_SLEEP\n");
                        break;
                }
+               if (!list_empty(&priv->cmdpendingq)) {
+                       lbs_deb_cmd("EVENT: commands in queue, do not sleep\n");
+                       break;
+               }
                priv->psstate = PS_STATE_PRE_SLEEP;
 
                lbs_ps_confirm_sleep(priv);