[PATCH 5.10 109/173] drm/meson: fix missing component unbind on bind errors

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From: Johan Hovold <johan+linaro@xxxxxxxxxx>

[ Upstream commit ba98413bf45edbf33672e2539e321b851b2cfbd1 ]

Make sure to unbind all subcomponents when binding the aggregate device
fails.

Fixes: a41e82e6c457 ("drm/meson: Add support for components")
Cc: stable@xxxxxxxxxxxxxxx      # 4.12
Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Acked-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230306103533.4915-1-johan+linaro@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/meson/meson_drv.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 090878bd74f6a..5c29ddf93eb3f 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -339,19 +339,19 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
 
 	ret = meson_plane_create(priv);
 	if (ret)
-		goto exit_afbcd;
+		goto unbind_all;
 
 	ret = meson_overlay_create(priv);
 	if (ret)
-		goto exit_afbcd;
+		goto unbind_all;
 
 	ret = meson_crtc_create(priv);
 	if (ret)
-		goto exit_afbcd;
+		goto unbind_all;
 
 	ret = drm_irq_install(drm, priv->vsync_irq);
 	if (ret)
-		goto exit_afbcd;
+		goto unbind_all;
 
 	drm_mode_config_reset(drm);
 
@@ -369,6 +369,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
 
 uninstall_irq:
 	drm_irq_uninstall(drm);
+unbind_all:
+	if (has_components)
+		component_unbind_all(drm->dev, drm);
 exit_afbcd:
 	if (priv->afbcd.ops)
 		priv->afbcd.ops->exit(priv);
-- 
2.39.2






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