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Subject[PATCH AUTOSEL 4.14 15/46] media: platform: Improve queue set up flow for bug fixing
Date
From: Xia Jiang <xia.jiang@mediatek.com>

[ Upstream commit 5095a6413a0cf896ab468009b6142cb0fe617e66 ]

Add checking created buffer size follow in mtk_jpeg_queue_setup().

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Xia Jiang <xia.jiang@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 46c996936798a..fd9e13500fe7f 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -579,6 +579,13 @@ static int mtk_jpeg_queue_setup(struct vb2_queue *q,
if (!q_data)
return -EINVAL;

+ if (*num_planes) {
+ for (i = 0; i < *num_planes; i++)
+ if (sizes[i] < q_data->sizeimage[i])
+ return -EINVAL;
+ return 0;
+ }
+
*num_planes = q_data->fmt->colplanes;
for (i = 0; i < q_data->fmt->colplanes; i++) {
sizes[i] = q_data->sizeimage[i];
--
2.25.1
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