On 27/08/2021 18:39, Paul Cercueil wrote:
If run before the next bridge is initialized, of_drm_find_bridge() will give us a NULL pointer.
If that's the case, return -EPROBE_DEFER; we may have more luck next time.
Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver")
Signed-off-by: Paul Cercueil paul@crapouillou.net
drivers/gpu/drm/bridge/ite-it66121.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index b130d01147c6..9dc41a7b9136 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -924,6 +924,9 @@ static int it66121_probe(struct i2c_client *client, ctx->next_bridge = of_drm_find_bridge(ep); of_node_put(ep);
- if (!ctx->next_bridge)
return -EPROBE_DEFER;- i2c_set_clientdata(client, ctx); mutex_init(&ctx->lock);
Reviewed-by: Neil Armstrong narmstrong@baylibre.com
Thanks, Neil