From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Add the missing unlock before return from function cppi41_dma_callback()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/usb/musb/musb_cppi41.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index a74259e..6c12c86 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -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;
--
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