[PATCH 1/3] drm/meson: Fix an un-handled error path in 'meson_drv_bind_master()'

[Christophe JAILLET]

'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 <christophe.jaillet at wanadoo.fr>
---
 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 f9ad0e960263..02b0886debc0 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -222,7 +222,10 @@ 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;
-- 
2.14.1


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