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30 lines
1.0 KiB
Diff
30 lines
1.0 KiB
Diff
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From 74a4bd2caa37f07786cdf3e86ad9f7cbc6977b31 Mon Sep 17 00:00:00 2001
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From: Daniel Scally <djrscally@gmail.com>
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Date: Wed, 2 Mar 2022 22:03:00 +0000
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Subject: [PATCH] media: entity: Skip non-data links in graph iteration
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When iterating over the media graph, don't follow links that are not
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data links.
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Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Signed-off-by: Daniel Scally <djrscally@gmail.com>
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---
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drivers/media/mc/mc-entity.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/media/mc/mc-entity.c
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+++ b/drivers/media/mc/mc-entity.c
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@@ -313,6 +313,12 @@ static void media_graph_walk_iter(struct
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link = list_entry(link_top(graph), typeof(*link), list);
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+ /* If the link is not a data link, don't follow it */
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+ if ((link->flags & MEDIA_LNK_FL_LINK_TYPE) != MEDIA_LNK_FL_DATA_LINK) {
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+ link_top(graph) = link_top(graph)->next;
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+ return;
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+ }
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+
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/* The link is not enabled so we do not follow. */
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if (!(link->flags & MEDIA_LNK_FL_ENABLED)) {
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link_top(graph) = link_top(graph)->next;
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