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USB: musb: add missing unlock in cppi_interrupt() 

We should unlock before returning here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Dan Carpenter 2011-03-20 14:14:36 +03:00 committed by Felipe Balbi
parent 8726606424
commit ec63bf6c06
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/musb/cppi_dma.c
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@ -1167,8 +1167,11 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
tx = musb_readl(tibase, DAVINCI_TXCPPI_MASKED_REG);
rx = musb_readl(tibase, DAVINCI_RXCPPI_MASKED_REG);
if (!tx && !rx)
if (!tx && !rx) {
if (cppi->irq)
spin_unlock_irqrestore(&musb->lock, flags);
return IRQ_NONE;
}
DBG(4, "CPPI IRQ Tx%x Rx%x\n", tx, rx);