linux-kernel - [PATCH AUTOSEL 4.9 41/87] media: s5p-g2d: Correct return type for mem2mem buffer helpers

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Message-Id: <20190327182040.17444-41-sashal@kernel.org>
Date:   Wed, 27 Mar 2019 14:19:54 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ezequiel Garcia <ezequiel@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 4.9 41/87] media: s5p-g2d: Correct return type for mem2mem buffer helpers

From: Ezequiel Garcia <ezequiel@...labora.com>

[ Upstream commit 30fa627b32230737bc3f678067e2adfecf956987 ]

Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:

 v4l2_m2m_next_buf
 v4l2_m2m_last_buf
 v4l2_m2m_buf_remove
 v4l2_m2m_next_src_buf
 v4l2_m2m_next_dst_buf
 v4l2_m2m_last_src_buf
 v4l2_m2m_last_dst_buf
 v4l2_m2m_src_buf_remove
 v4l2_m2m_dst_buf_remove

return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.

Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.

Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/s5p-g2d/g2d.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 62c0dec30b59..5f6ccf492111 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -498,7 +498,7 @@ static void device_run(void *prv)
 {
 	struct g2d_ctx *ctx = prv;
 	struct g2d_dev *dev = ctx->dev;
-	struct vb2_buffer *src, *dst;
+	struct vb2_v4l2_buffer *src, *dst;
 	unsigned long flags;
 	u32 cmd = 0;
 
@@ -513,10 +513,10 @@ static void device_run(void *prv)
 	spin_lock_irqsave(&dev->ctrl_lock, flags);
 
 	g2d_set_src_size(dev, &ctx->in);
-	g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(src, 0));
+	g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0));
 
 	g2d_set_dst_size(dev, &ctx->out);
-	g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(dst, 0));
+	g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0));
 
 	g2d_set_rop4(dev, ctx->rop);
 	g2d_set_flip(dev, ctx->flip);
-- 
2.19.1