Patch "staging: vt6655: lock MACvWriteBSSIDAddress." has been added to the 4.0-stable tree

Patch "staging: vt6655: lock MACvWriteBSSIDAddress." has been added to the 4.0-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    staging: vt6655: lock MACvWriteBSSIDAddress.

to the 4.0-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     staging-vt6655-lock-macvwritebssidaddress.patch
and it can be found in the queue-4.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 664a5c1d1e33cd89cb7883e8c74638cc482b5da7 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 21 Apr 2015 22:33:02 +0100
Subject: staging: vt6655: lock MACvWriteBSSIDAddress.

From: Malcolm Priestley <tvboxspy@gmail.com>

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 <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/vt6655/device_main.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1414,9 +1414,16 @@ static void vnt_bss_info_changed(struct
 
 	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;
 


Patches currently in stable-queue which might be from tvboxspy@gmail.com are

queue-4.0/staging-vt6655-vnt_tx_packet-correct-tx-order-of-owned_by_nic.patch
queue-4.0/staging-vt6655-device_free_tx_buf-use-only-ieee80211_tx_status_irqsafe.patch
queue-4.0/staging-vt6656-use-ieee80211_tx_info-to-select-packet-type.patch
queue-4.0/staging-vt6655-implement-ieee80211_tx_stat_noack_transmitted.patch
queue-4.0/staging-vt6655-fix-80211-control-and-management-status-reporting.patch
queue-4.0/staging-vt6655-lock-macvwritebssidaddress.patch