diff options
| author | Malcolm Priestley <tvboxspy@gmail.com> | 2014-07-23 22:35:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-25 00:10:42 +0200 |
| commit | 6cff1f6ad4c615319c1a146b2aa0af1043c5e9f5 (patch) | |
| tree | a25608bc1762fc597cf8a786935c442029b0af33 /drivers | |
| parent | staging: rtl8723au: rtw_resume(): release semaphore before exit on error (diff) | |
| download | linux-6cff1f6ad4c615319c1a146b2aa0af1043c5e9f5.tar.xz linux-6cff1f6ad4c615319c1a146b2aa0af1043c5e9f5.zip | |
staging: vt6655: Fix Warning on boot handle_irq_event_percpu.
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: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/vt6655/device_main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 1d3908d044d0..5a5fd937a442 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -2318,6 +2318,7 @@ static irqreturn_t device_intr(int irq, void *dev_instance) { int handled = 0; unsigned char byData = 0; int ii = 0; + unsigned long flags; MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr); @@ -2331,7 +2332,8 @@ 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); @@ -2560,7 +2562,8 @@ static irqreturn_t device_intr(int irq, void *dev_instance) { if (byOrgPageSel == 1) MACvSelectPage1(pDevice->PortOffset); - spin_unlock_irq(&pDevice->lock); + spin_unlock_irqrestore(&pDevice->lock, flags); + MACvIntEnable(pDevice->PortOffset, IMR_MASK_VALUE); return IRQ_RETVAL(handled); |