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    Subject[PATCH 4.0 069/148] staging: vt6655: lock MACvWriteBSSIDAddress.
    Date
    4.0-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    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;




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