linux-kernel - [PATCH 026/115] gpu: ion: fix page offset in dma_buf

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Message-Id: <1386973529-4884-27-git-send-email-john.stultz@linaro.org>
Date:	Fri, 13 Dec 2013 14:24:00 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Android Kernel Team <kernel-team@...roid.com>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Jesse Barker <jesse.barker@....com>,
	Colin Cross <ccross@...roid.com>,
	Greg Hackmann <ghackmann@...gle.com>,
	John Stultz <john.stultz@...aro.org>
Subject: [PATCH 026/115] gpu: ion: fix page offset in dma_buf_kmap()

From: Greg Hackmann <ghackmann@...gle.com>

Signed-off-by: Greg Hackmann <ghackmann@...gle.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 drivers/staging/android/ion/ion.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 4d91d20..84229bd 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -846,7 +846,7 @@ static void ion_dma_buf_release(struct dma_buf *dmabuf)
 static void *ion_dma_buf_kmap(struct dma_buf *dmabuf, unsigned long offset)
 {
 	struct ion_buffer *buffer = dmabuf->priv;
-	return buffer->vaddr + offset;
+	return buffer->vaddr + offset * PAGE_SIZE;
 }
 
 static void ion_dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long offset,
-- 
1.8.3.2

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