usb: musb: cppi41: fix missing unlock on error in cppi41_dma_callback()
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>
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index e64701d..ae95974 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -150,8 +150,10 @@
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;