dmaengine: s3c24xx: missing unlock on an error path

[firefly-linux-kernel-4.4.55.git] / drivers / dma / s3c24xx-dma.c

diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
index 4d5a84815ba7bdd63379c97b189ddd14f5003964..2f91da3db8361cdba3dbd51e120b299607a42485 100644 (file)
--- a/drivers/dma/s3c24xx-dma.c
+++ b/drivers/dma/s3c24xx-dma.c
@@ -718,13 +718,15 @@ static int s3c24xx_dma_terminate_all(struct dma_chan *chan)
        struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
        struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
        unsigned long flags;
+       int ret = 0;
 
        spin_lock_irqsave(&s3cchan->vc.lock, flags);
 
        if (!s3cchan->phy && !s3cchan->at) {
                dev_err(&s3cdma->pdev->dev, "trying to terminate already stopped channel %d\n",
                        s3cchan->id);
-               return -EINVAL;
+               ret = -EINVAL;
+               goto unlock;
        }
 
        s3cchan->state = S3C24XX_DMA_CHAN_IDLE;
@@ -741,10 +743,10 @@ static int s3c24xx_dma_terminate_all(struct dma_chan *chan)
 
        /* Dequeue jobs not yet fired as well */
        s3c24xx_dma_free_txd_list(s3cdma, s3cchan);
-
+unlock:
        spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
 
-       return 0;
+       return ret;
 }
 
 static int s3c24xx_dma_alloc_chan_resources(struct dma_chan *chan)