Return-path: Received: from glaubenleben.de ([85.214.105.140]:44445 "EHLO glaubenleben.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758123AbcATHg6 (ORCPT ); Wed, 20 Jan 2016 02:36:58 -0500 From: Andreas Kemnade To: libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, hns@goldelico.com Cc: Andreas Kemnade Subject: [PATCH v2 5/6] wireless:libertas: fix ps-mode related removal problems Date: Wed, 20 Jan 2016 08:35:38 +0100 Message-Id: <1453275339-25122-6-git-send-email-andreas@kemnade.info> (sfid-20160120_083831_030872_0A350CEB) In-Reply-To: <1453275339-25122-1-git-send-email-andreas@kemnade.info> References: <1453275339-25122-1-git-send-email-andreas@kemnade.info> Sender: linux-wireless-owner@vger.kernel.org List-ID: When the device is remove e.g. because of going 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, since the command processing queue is already stopped, so it waits forever for the command being processed, so disable it. Signed-off-by: Andreas Kemnade --- changes in v2: improved commit message, reordered: was 6/6 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 8079560..b35b8bc 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1060,7 +1060,12 @@ 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) { -- 2.1.4