From 3028718fd06bb931868a1a8068eab7396a7a622a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 30 Jan 2015 11:29:33 +0300 Subject: [PATCH] dmaengine: s3c24xx: missing unlock on an error path We should unlock here before returning -EINVAL. Fixes: 39ad46009654 ('dmaengine: s3c24xx: Split device_control') Signed-off-by: Dan Carpenter Acked-by: Maxime Ripard Signed-off-by: Vinod Koul --- drivers/dma/s3c24xx-dma.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c index 4d5a84815ba7..2f91da3db836 100644 --- 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) -- 2.20.1