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authorMalcolm Priestley <tvboxspy@gmail.com>2015-04-21 22:33:02 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-08 14:35:23 +0200
commit664a5c1d1e33cd89cb7883e8c74638cc482b5da7 (patch)
treea369a563f427727f8a7e0de83c862e217c14a71f
parent032ed34a84263cdb396e4318fed6a92ed50add26 (diff)
downloadop-kernel-dev-664a5c1d1e33cd89cb7883e8c74638cc482b5da7.zip
op-kernel-dev-664a5c1d1e33cd89cb7883e8c74638cc482b5da7.tar.gz
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 <tvboxspy@gmail.com> Cc: <stable@vger.kernel.org> # v3.19+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/staging/vt6655/device_main.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index b386047..0343ae3 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;
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