[PATCH 6.13 454/623] media: uvcvideo: Propagate buf->error to userspace

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6.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>

[ Upstream commit 87ce177654e388451850905a1d376658aebe8699 ]

Now we return VB2_BUF_STATE_DONE for valid and invalid frames. Propagate
the correct value, so the user can know if the frame is valid or not via
struct v4l2_buffer->flags.

Reported-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Closes: https://lore.kernel.org/linux-media/84b0f212-cd88-46bb-8e6f-b94ec3eccba6@xxxxxxxxxx
Fixes: 6998b6fb4b1c ("[media] uvcvideo: Use videobuf2-vmalloc")
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241218-uvc-deprecate-v2-1-ab814139e983@xxxxxxxxxxxx
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/usb/uvc/uvc_queue.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/uvc/uvc_queue.c b/drivers/media/usb/uvc/uvc_queue.c
index 26ee85657fc89..f8464f0aae1b8 100644
--- a/drivers/media/usb/uvc/uvc_queue.c
+++ b/drivers/media/usb/uvc/uvc_queue.c
@@ -479,7 +479,8 @@ static void uvc_queue_buffer_complete(struct kref *ref)
 
 	buf->state = buf->error ? UVC_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
 	vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused);
-	vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE);
+	vb2_buffer_done(&buf->buf.vb2_buf, buf->error ? VB2_BUF_STATE_ERROR :
+							VB2_BUF_STATE_DONE);
 }
 
 /*
-- 
2.39.5







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