This is a note to let you know that I've just added the patch titled drm/tegra: Fix reference leak in tegra_dsi_ganged_probe to the 5.15-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-tegra-fix-reference-leak-in-tegra_dsi_ganged_pro.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 0d5fbe06a308deaa8a0e601085ef306c4e36fbc4 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Mon Jan 10 06:53:16 2022 +0000 drm/tegra: Fix reference leak in tegra_dsi_ganged_probe [ Upstream commit 221e3638feb8bc42143833c9a704fa89b6c366bb ] The reference taken by 'of_find_device_by_node()' must be released when not needed anymore. Add put_device() call to fix this. Fixes: e94236cde4d5 ("drm/tegra: dsi: Add ganged mode support") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c index f46d377f0c30..de1333dc0d86 100644 --- a/drivers/gpu/drm/tegra/dsi.c +++ b/drivers/gpu/drm/tegra/dsi.c @@ -1538,8 +1538,10 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi) dsi->slave = platform_get_drvdata(gangster); of_node_put(np); - if (!dsi->slave) + if (!dsi->slave) { + put_device(&gangster->dev); return -EPROBE_DEFER; + } dsi->slave->master = dsi; }