vRunCommand is nolonger atomic add lock for nsDMA_tx_packet.
Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
---
drivers/staging/vt6656/wcmd.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index d51cc90..66d59d5 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -279,6 +279,7 @@ void vRunCommand(struct work_struct *work)
int ii;
u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
u8 byData;
+ unsigned long flags;
if (pDevice->Flags & fMP_DISCONNECTED)
return;
@@ -667,9 +668,13 @@ void vRunCommand(struct work_struct *work)
pDevice->bMoreData = true;
}
+ spin_lock_irqsave(&pDevice->lock, flags);
+
if (nsDMA_tx_packet(pDevice, skb) != 0)
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Multicast ps tx fail\n");
+ spin_unlock_irqrestore(&pDevice->lock, flags);
+
pMgmt->sNodeDBTable[0].wEnQueueCnt--;
}
}
@@ -690,9 +695,13 @@ void vRunCommand(struct work_struct *work)
pDevice->bMoreData = true;
}
+ spin_lock_irqsave(&pDevice->lock, flags);
+
if (nsDMA_tx_packet(pDevice, skb) != 0)
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "sta ps tx fail\n");
+ spin_unlock_irqrestore(&pDevice->lock, flags);
+
pMgmt->sNodeDBTable[ii].wEnQueueCnt--;
// check if sta ps enable, wait next pspoll
// if sta ps disable, send all pending buffers.
--
1.9.1
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