2013-04-16 10:51:48

by Lad, Prabhakar

[permalink] [raw]
Subject: [PATCH] media: davinci: vpif: allign the buffers size to page page size boundary

From: Lad, Prabhakar <[email protected]>

with recent commit with id 068a0df76023926af958a336a78bef60468d2033
which adds add length check for mmap, the application were failing to
mmap the buffers.

This patch aligns the the buffer size to page size boundary for both
capture and display driver so the it pass the check.

Signed-off-by: Lad, Prabhakar <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Hans Verkuil <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
---
drivers/media/platform/davinci/vpif_capture.c | 1 +
drivers/media/platform/davinci/vpif_display.c | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 5f98df1..25981d6 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -183,6 +183,7 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
*nbuffers = config_params.min_numbuffers;

*nplanes = 1;
+ size = PAGE_ALIGN(size);
sizes[0] = size;
alloc_ctxs[0] = common->alloc_ctx;

diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index 1b3fb5c..3414715 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -162,6 +162,7 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
*nbuffers = config_params.min_numbuffers;

*nplanes = 1;
+ size = PAGE_ALIGN(size);
sizes[0] = size;
alloc_ctxs[0] = common->alloc_ctx;
return 0;
--
1.7.4.1