diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 66f1b2ac5cde..c27e206a764c 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -760,8 +760,12 @@ static void sdma_start_desc(struct sdma_channel *sdmac) return; } sdmac->desc = desc = to_sdma_desc(&vd->tx); - - list_del(&vd->node); + /* + * Do not delete the node in desc_issued list in cyclic mode, otherwise + * the desc allocated will never be freed in vchan_dma_desc_free_list + */ + if (!(sdmac->flags & IMX_DMA_SG_LOOP)) + list_del(&vd->node); sdma->channel_control[channel].base_bd_ptr = desc->bd_phys; sdma->channel_control[channel].current_bd_ptr = desc->bd_phys; @@ -1067,6 +1071,7 @@ static void sdma_channel_terminate_work(struct work_struct *work) spin_lock_irqsave(&sdmac->vc.lock, flags); vchan_get_all_descriptors(&sdmac->vc, &head); + sdmac->desc = NULL; spin_unlock_irqrestore(&sdmac->vc.lock, flags); vchan_dma_desc_free_list(&sdmac->vc, &head); sdmac->context_loaded = false; @@ -1075,19 +1080,11 @@ static void sdma_channel_terminate_work(struct work_struct *work) static int sdma_disable_channel_async(struct dma_chan *chan) { struct sdma_channel *sdmac = to_sdma_chan(chan); - unsigned long flags; - - spin_lock_irqsave(&sdmac->vc.lock, flags); sdma_disable_channel(chan); - if (sdmac->desc) { - vchan_terminate_vdesc(&sdmac->desc->vd); - sdmac->desc = NULL; + if (sdmac->desc) schedule_work(&sdmac->terminate_worker); - } - - spin_unlock_irqrestore(&sdmac->vc.lock, flags); return 0; }