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usb: musb: cppi41: fix missing unlock on error in cppi41_dma_callback()

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Add the missing unlock before return from function cppi41_dma_callback()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Wei Yongjun 2013-08-18 16:13:13 +08:00 committed by Felipe Balbi
parent bd2fbf3a56
commit 0b5c1e62d8
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/musb/musb_cppi41.c
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@ -150,8 +150,10 @@ static void cppi41_dma_callback(void *private_data)
remain_bytes,
direction,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (WARN_ON(!dma_desc))
if (WARN_ON(!dma_desc)) {
spin_unlock_irqrestore(&musb->lock, flags);
return;
}
dma_desc->callback = cppi41_dma_callback;
dma_desc->callback_param = channel;