[Gta04-owner] [PATCH 3.7nplusplus] libertas: hack: fix suspend problems

Andreas Kemnade andreas at kemnade.info
Fri Dec 11 17:28:02 CET 2015


When the device goes to suspend mode with powersaving enabled,
lbs_remove_card tries to exit powersaving state even
when already woken up. That command is not processed properly in
that situation, so the system hangs at suspend,
 so disable it.

Signed-off-by: Andreas Kemnade <andreas at kemnade.info>
---
 drivers/net/wireless/libertas/main.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 8f183eb..5a366be 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -1057,7 +1057,12 @@ void lbs_remove_card(struct lbs_private *priv)
 
 	if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
 		priv->psmode = LBS802_11POWERMODECAM;
-		lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true);
+		/* no need to wakeup if already woken up,
+		on suspend, this exit ps command is not processed
+		the driver hangs
+		*/
+		if (priv->psstate != PS_STATE_FULL_POWER)
+			lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true);
 	}
 
 	if (priv->is_deep_sleep) {
-- 
1.7.10.4



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