Merge tag 'exynos-drm-fixes-for-v5.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

Two fixups
- It fixes wrong return value by returing proper error value instead of
  fixed one.
- It fixes ref count leak in mic_pre_enable.
One cleanup
- It removes dev_err() call on platform_get_irq() failure because
  platform_get_irq() call dev_err() itself on failure.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1593395988-4612-1-git-send-email-inki.dae@samsung.com

drivers/gpu/drm/exynos/exynos_drm_dma.c

@@ -61,7 +61,7 @@ static int drm_iommu_attach_device(struct drm_device *drm_dev,
 				struct device *subdrv_dev, void **dma_priv)
 {
 	struct exynos_drm_private *priv = drm_dev->dev_private;
-	int ret;
+	int ret = 0;
 
 	if (get_dma_ops(priv->dma_dev) != get_dma_ops(subdrv_dev)) {
 		DRM_DEV_ERROR(subdrv_dev, "Device %s lacks support for IOMMU\n",
@@ -92,7 +92,7 @@ static int drm_iommu_attach_device(struct drm_device *drm_dev,
 	if (ret)
 		clear_dma_max_seg_size(subdrv_dev);
 
-	return 0;
+	return ret;
 }
 
 /*

drivers/gpu/drm/exynos/exynos_drm_g2d.c

@@ -1498,7 +1498,6 @@ static int g2d_probe(struct platform_device *pdev)
 
 	g2d->irq = platform_get_irq(pdev, 0);
 	if (g2d->irq < 0) {
-		dev_err(dev, "failed to get irq\n");
 		ret = g2d->irq;
 		goto err_put_clk;
 	}

drivers/gpu/drm/exynos/exynos_drm_mic.c

@@ -269,8 +269,10 @@ static void mic_pre_enable(struct drm_bridge *bridge)
 		goto unlock;
 
 	ret = pm_runtime_get_sync(mic->dev);
-	if (ret < 0)
+	if (ret < 0) {
+		pm_runtime_put_noidle(mic->dev);
 		goto unlock;
+	}
 
 	mic_set_path(mic, 1);