This is a note to let you know that I've just added the patch titled
drm/mipi-dsi: Detach devices when removing the host
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-mipi-dsi-detach-devices-when-removing-the-host.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 119c5afc9ce12d6e444ed8a3d3ea57a745e502e9
Author: Maxime Ripard <maxime@xxxxxxxxxx>
Date: Mon Jul 11 19:38:31 2022 +0200
drm/mipi-dsi: Detach devices when removing the host
[ Upstream commit 668a8f17b5290d04ef7343636a5588a0692731a1 ]
Whenever the MIPI-DSI host is unregistered, the code of
mipi_dsi_host_unregister() loops over every device currently found on that
bus and will unregister it.
However, it doesn't detach it from the bus first, which leads to all kind
of resource leaks if the host wants to perform some clean up whenever a
device is detached.
Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220711173939.1132294-2-maxime@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index c40bde96cfdf..c317ee9fa445 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -346,6 +346,7 @@ static int mipi_dsi_remove_device_fn(struct device *dev, void *priv)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
+ mipi_dsi_detach(dsi);
mipi_dsi_device_unregister(dsi);
return 0;
