From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757285AbbFQXgV (ORCPT ); Wed, 17 Jun 2015 19:36:21 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:34793 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932687AbbFQWZb (ORCPT ); Wed, 17 Jun 2015 18:25:31 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Malcolm Priestley , Greg Kroah-Hartman , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 042/146] staging: vt6655: lock MACvWriteBSSIDAddress. Date: Wed, 17 Jun 2015 15:22:27 -0700 Message-Id: <1434579851-1719-43-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434579851-1719-1-git-send-email-kamal@canonical.com> References: <1434579851-1719-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.19.8-ckt2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Malcolm Priestley commit 664a5c1d1e33cd89cb7883e8c74638cc482b5da7 upstream. This function selects page 1 and cause intermittent problems on interrupt handler. lock call with spin_lock_irqsave. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman Signed-off-by: Kamal Mostafa --- drivers/staging/vt6655/device_main.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 6815c45..b7f6d95 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -1443,9 +1443,16 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw, priv->current_aid = conf->aid; - if (changed & BSS_CHANGED_BSSID) + if (changed & BSS_CHANGED_BSSID) { + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + MACvWriteBSSIDAddress(priv->PortOffset, (u8 *)conf->bssid); + spin_unlock_irqrestore(&priv->lock, flags); + } + if (changed & BSS_CHANGED_BASIC_RATES) { priv->basic_rates = conf->basic_rates; -- 1.9.1