| From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 042/146] staging: vt6655: lock MACvWriteBSSIDAddress. | Date | Wed, 17 Jun 2015 15:22:27 -0700 |
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3.19.8-ckt2 -stable review patch. If anyone has any objections, please let me know.
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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> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- 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
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