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[media] omap3isp: queue: Fix the dma_map_sg() return value check

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dma_map_sg() can merge sglist entries, and can thus return a number of
mapped entries different than the original value. Don't consider this as
an error.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Laurent Pinchart 2014-03-09 17:58:37 -03:00 committed by Mauro Carvalho Chehab
parent 7f5036d059
commit b8d642826d
1 changed files with 1 additions and 1 deletions
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drivers/media/platform/omap3isp/ispqueue.c
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@ -465,7 +465,7 @@ static int isp_video_buffer_prepare(struct isp_video_buffer *buf)
? DMA_FROM_DEVICE : DMA_TO_DEVICE;
ret = dma_map_sg(buf->queue->dev, buf->sgt.sgl,
buf->sgt.orig_nents, direction);
if (ret != buf->sgt.orig_nents) {
if (ret <= 0) {
ret = -EFAULT;
goto done;
}