linux-kernel - [PATCH 3/3] media/videobuf2-dma-vmalloc: Save output from dma_map

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Date:	Mon,  9 Feb 2015 17:14:26 +0100
From:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To:	Hans Verkuil <hans.verkuil@...co.com>,
	Pawel Osciak <pawel@...iak.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Subject: [PATCH 3/3] media/videobuf2-dma-vmalloc: Save output from dma_map_sg

dma_map_sg returns the actual number of areas mapped. Save it on nents.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
---
 drivers/media/v4l2-core/videobuf2-vmalloc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/v4l2-core/videobuf2-vmalloc.c b/drivers/media/v4l2-core/videobuf2-vmalloc.c
index bcde885..fe18e79 100644
--- a/drivers/media/v4l2-core/videobuf2-vmalloc.c
+++ b/drivers/media/v4l2-core/videobuf2-vmalloc.c
@@ -312,6 +312,7 @@ static struct sg_table *vb2_vmalloc_dmabuf_ops_map(
 		mutex_unlock(lock);
 		return ERR_PTR(-EIO);
 	}
+	sgt->nents = ret;
 
 	attach->dma_dir = dma_dir;
 
-- 
2.1.4

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