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media: v4l2-subdev: Allow accessing routes with STREAMS client capability

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Disable access to routes when the STREAMS client capability bit isn't set.
Routes aren't relevant otherwise anyway.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This commit is contained in:
Sakari Ailus
2026-02-05 10:19:35 +02:00
parent 1155f8e0cc
commit bc1ba628e3
1 changed files with 6 additions and 0 deletions
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6
drivers/media/v4l2-core/v4l2-subdev.c
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@@ -1019,6 +1019,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS))
return -ENOIOCTLCMD;
if (!client_supports_streams)
return -EINVAL;
memset(routing->reserved, 0, sizeof(routing->reserved));
v4l2_subdev_copy_routes(routing, state);
@@ -1040,6 +1043,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS))
return -ENOIOCTLCMD;
if (!client_supports_streams)
return -EINVAL;
if (routing->which != V4L2_SUBDEV_FORMAT_TRY && ro_subdev)
return -EPERM;