linux-kernel - [PATCH 5.4 088/168] media: hantro: Fix broken media controller links

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Date:   Tue, 10 Mar 2020 13:38:54 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Nicolas Dufresne <nicolas@...fresne.ca>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Subject: [PATCH 5.4 088/168] media: hantro: Fix broken media controller links

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

commit d171c45da874e3858a83e6377e00280a507fe2f2 upstream.

The driver currently creates a broken topology,
with a source-to-source link and a sink-to-sink
link instead of two source-to-sink links.

Reported-by: Nicolas Dufresne <nicolas@...fresne.ca>
Cc: <stable@...r.kernel.org>      # for v5.3 and up
Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/media/hantro/hantro_drv.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -553,13 +553,13 @@ static int hantro_attach_func(struct han
 		goto err_rel_entity1;
 
 	/* Connect the three entities */
-	ret = media_create_pad_link(&func->vdev.entity, 0, &func->proc, 1,
+	ret = media_create_pad_link(&func->vdev.entity, 0, &func->proc, 0,
 				    MEDIA_LNK_FL_IMMUTABLE |
 				    MEDIA_LNK_FL_ENABLED);
 	if (ret)
 		goto err_rel_entity2;
 
-	ret = media_create_pad_link(&func->proc, 0, &func->sink, 0,
+	ret = media_create_pad_link(&func->proc, 1, &func->sink, 0,
 				    MEDIA_LNK_FL_IMMUTABLE |
 				    MEDIA_LNK_FL_ENABLED);
 	if (ret)