Commit 7d526a2b authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Ben Hutchings

staging: vt6655: Fix Warning on boot handle_irq_event_percpu.

commit 6cff1f6a upstream.

WARNING: CPU: 0 PID: 929 at /home/apw/COD/linux/kernel/irq/handle.c:147 handle_irq_event_percpu+0x1d1/0x1e0()
irq 17 handler device_intr+0x0/0xa80 [vt6655_stage] enabled interrupts

Using spin_lock_irqsave appears to fix this.
Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context, indentation]
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent 00cab884
......@@ -2679,6 +2679,7 @@ static irqreturn_t device_intr(int irq, void *dev_instance) {
unsigned char byData = 0;
int ii= 0;
// unsigned char byRSSI;
unsigned long flags;
MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr);
......@@ -2704,7 +2705,8 @@ static irqreturn_t device_intr(int irq, void *dev_instance) {
handled = 1;
MACvIntDisable(pDevice->PortOffset);
spin_lock_irq(&pDevice->lock);
spin_lock_irqsave(&pDevice->lock, flags);
//Make sure current page is 0
VNSvInPortB(pDevice->PortOffset + MAC_REG_PAGE1SEL, &byOrgPageSel);
......@@ -2952,7 +2954,8 @@ static irqreturn_t device_intr(int irq, void *dev_instance) {
MACvSelectPage1(pDevice->PortOffset);
}
spin_unlock_irq(&pDevice->lock);
spin_unlock_irqrestore(&pDevice->lock, flags);
MACvIntEnable(pDevice->PortOffset, IMR_MASK_VALUE);
return IRQ_RETVAL(handled);
......
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