[PATCH v1] drm: bridge: it66121: Check drm_bridge_attach retval

[Robert Foss]

The return value of drm_bridge_attach() is ignored during
the it66121_bridge_attach() call, which is incorrect.

Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver")
Signed-off-by: Robert Foss <robert.f...@linaro.org>
---
 drivers/gpu/drm/bridge/ite-it66121.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c 
b/drivers/gpu/drm/bridge/ite-it66121.c
index 7149ed40af83..2f2a09adb4bc 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -536,6 +536,8 @@ static int it66121_bridge_attach(struct drm_bridge *bridge,
                return -EINVAL;
 
        ret = drm_bridge_attach(bridge->encoder, ctx->next_bridge, bridge, 
flags);
+       if (ret)
+               return ret;
 
        ret = regmap_write_bits(ctx->regmap, IT66121_CLK_BANK_REG,
                                IT66121_CLK_BANK_PWROFF_RCLK, 0);
-- 
2.30.2