diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 8367578bac638dd1ada2ccb40dba9444ca5cce6d..5a6b85527107c85a069ec072c61c51854428f8c3 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -487,16 +487,16 @@ static int rcar_dmac_desc_alloc(struct rcar_dmac_chan *chan, gfp_t gfp) * * The descriptor must have been removed from the channel's lists before calling * this function. - * - * Locking: Must be called in non-atomic context. */ static void rcar_dmac_desc_put(struct rcar_dmac_chan *chan, struct rcar_dmac_desc *desc) { - spin_lock_irq(&chan->lock); + unsigned long flags; + + spin_lock_irqsave(&chan->lock, flags); list_splice_tail_init(&desc->chunks, &chan->desc.chunks_free); list_add_tail(&desc->node, &chan->desc.free); - spin_unlock_irq(&chan->lock); + spin_unlock_irqrestore(&chan->lock, flags); } static void rcar_dmac_desc_recycle_acked(struct rcar_dmac_chan *chan)