linux-kernel - [PATCH] [media] videobuf-dma-contig: fix incorrect argument to vm_iomap

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Message-Id: <1395918426-27787-2-git-send-email-mahaijuns@gmail.com>
Date:	Thu, 27 Mar 2014 19:07:06 +0800
From:	Ma Haijun <mahaijuns@...il.com>
To:	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Al Viro <viro@...IV.linux.org.uk>,
	Ma Haijun <mahaijuns@...il.com>
Subject: [PATCH] [media] videobuf-dma-contig: fix incorrect argument to vm_iomap_memory() call

The second argument should be physical address rather than virtual address.

Signed-off-by: Ma Haijun <mahaijuns@...il.com>
---
 drivers/media/v4l2-core/videobuf-dma-contig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/videobuf-dma-contig.c b/drivers/media/v4l2-core/videobuf-dma-contig.c
index 7e6b209..bf80f0f 100644
--- a/drivers/media/v4l2-core/videobuf-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf-dma-contig.c
@@ -305,7 +305,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q,
 	/* Try to remap memory */
 	size = vma->vm_end - vma->vm_start;
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-	retval = vm_iomap_memory(vma, vma->vm_start, size);
+	retval = vm_iomap_memory(vma, mem->dma_handle, size);
 	if (retval) {
 		dev_err(q->dev, "mmap: remap failed with error %d. ",
 			retval);
-- 
1.8.3.2

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