From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Tue, 14 Nov 2017 14:32:05 +0000 (+0200)
Subject: dmaengine: omap-dma: Use vchan_terminate_vdesc() instead of desc_free
X-Git-Tag: v4.16-rc1~138^2~1^2~7
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b1faf0f564ffa6c58f7c7c9a9263dc0f7f78e215;p=linux.git

dmaengine: omap-dma: Use vchan_terminate_vdesc() instead of desc_free

To avoid race with vchan_complete, use the race free way to terminate
running transfer.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index f6dd849159d8..d21c19822feb 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -1311,7 +1311,7 @@ static int omap_dma_terminate_all(struct dma_chan *chan)
 	 * c->desc is NULL and exit.)
 	 */
 	if (c->desc) {
-		omap_dma_desc_free(&c->desc->vd);
+		vchan_terminate_vdesc(&c->desc->vd);
 		c->desc = NULL;
 		/* Avoid stopping the dma twice */
 		if (!c->paused)