From 903c66e35fb70aaa48fba43cc6af73c130b7e6ff Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Mon, 12 Mar 2018 21:15:08 +0100 Subject: [PATCH] drm/meson: Fix an un-handled error path in 'meson_drv_bind_master()' [ Upstream commit e770f6bf18182bc3af6ceec30189b6c323cbc157 ] 'drm_vblank_init()' can fail. So handle this (unlikely) error. Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller") Signed-off-by: Christophe JAILLET Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/6cbf3d70ac3904489c7194c895225c4103aebb96.1520885192.git.christophe.jaillet@wanadoo.fr Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/meson/meson_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 7c1930d8b419..4ad8223c60ea 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -221,7 +221,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) priv->vsync_irq = platform_get_irq(pdev, 0); - drm_vblank_init(drm, 1); + ret = drm_vblank_init(drm, 1); + if (ret) + goto free_drm; + drm_mode_config_init(drm); drm->mode_config.max_width = 3840; drm->mode_config.max_height = 2160; -- 2.20.1