drm/exynos: mic: convert to devm_drm_bridge_alloc() API

This is the new API for allocating DRM bridges.

Signed-off-by: Luca Ceresoli <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Signed-off-by: Louis Chauvet <[e-mail]>

drivers/gpu/drm/exynos/exynos_drm_mic.c

···
 	struct resource res;
 	int ret, i;
 
-	mic = devm_kzalloc(dev, sizeof(*mic), GFP_KERNEL);
-	if (!mic) {
+	mic = devm_drm_bridge_alloc(dev, struct exynos_mic, bridge, &mic_bridge_funcs);
+	if (IS_ERR(mic)) {
 		DRM_DEV_ERROR(dev,
 			      "mic: Failed to allocate memory for MIC object\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(mic);
 		goto err;
 	}
 
···
 
 	platform_set_drvdata(pdev, mic);
 
-	mic->bridge.funcs = &mic_bridge_funcs;
 	mic->bridge.of_node = dev->of_node;
 
 	drm_bridge_add(&mic->bridge);