[PATCH v5 13/18] drm/exynos: exynos_dp: Unbind bridge when connector init fails

[Damon Ding]

The exynos_dp_bind() returns without unwinding analogix_dp_bind() when
drm_bridge_connector_init() fails.  The aux device registered by
analogix_dp_bind() is then left behind with a dangling drm_dev
pointer, which could be accessed on later AUX transfers.

Call analogix_dp_unbind() in the error path to release the aux device.

Signed-off-by: Damon Ding <damon.ding at rock-chips.com>
---
 drivers/gpu/drm/exynos/exynos_dp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c
index b1e130278ecc..032c50d56179 100644
--- a/drivers/gpu/drm/exynos/exynos_dp.c
+++ b/drivers/gpu/drm/exynos/exynos_dp.c
@@ -121,6 +121,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 	if (IS_ERR(connector)) {
 		ret = PTR_ERR(connector);
 		dev_err(dp->dev, "Failed to initialize bridge_connector\n");
+		analogix_dp_unbind(dp->adp);
 		return ret;
 	}
 
-- 
2.34.1