From 664a5c1d1e33cd89cb7883e8c74638cc482b5da7 Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Tue, 21 Apr 2015 22:33:02 +0100 Subject: [PATCH] staging: vt6655: lock MACvWriteBSSIDAddress. This function selects page 1 and cause intermittent problems on interrupt handler. lock call with spin_lock_irqsave. Signed-off-by: Malcolm Priestley Cc: # v3.19+ Signed-off-by: Greg Kroah-Hartman --- 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 b3860477eceb..0343ae386f03 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -1417,9 +1417,16 @@ 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; -- 2.20.1