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From: Naushir Patuck <naush@raspberrypi.com>
To: linux-media@vger.kernel.org
Cc: laurent.pinchart@ideasonboard.com,
	Naushir Patuck <naush@raspberrypi.com>
Subject: [PATCH] Revert "media: videobuf2: Fix length check for single plane dmabuf queueing"
Date: Wed,  6 Jan 2021 13:52:11 +0000	[thread overview]
Message-ID: <20210106135210.12337-1-naush@raspberrypi.com> (raw)

The updated length check for dmabuf types broke existing usage in v4l2
userland clients.

Fixes: 961d3b27 ("media: videobuf2: Fix length check for single plane dmabuf queueing")
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
---
 drivers/media/common/videobuf2/videobuf2-v4l2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 96d3b2b2aa31..3f61f5863bf7 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -118,8 +118,7 @@ static int __verify_length(struct vb2_buffer *vb, const struct v4l2_buffer *b)
 				return -EINVAL;
 		}
 	} else {
-		length = (b->memory == VB2_MEMORY_USERPTR ||
-			  b->memory == VB2_MEMORY_DMABUF)
+		length = (b->memory == VB2_MEMORY_USERPTR)
 			? b->length : vb->planes[0].length;
 
 		if (b->bytesused > length)
-- 
2.25.1


             reply	other threads:[~2021-01-06 13:53 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-06 13:52 Naushir Patuck [this message]
2021-01-06 14:35 ` [PATCH] Revert "media: videobuf2: Fix length check for single plane dmabuf queueing" Kieran Bingham
2021-01-06 14:42   ` Laurent Pinchart
2021-01-06 14:50     ` Kieran Bingham
2021-01-06 15:16 ` [PATCH v2] " Naushir Patuck
2021-01-06 15:25   ` Laurent Pinchart

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