drm/omap: dss: Cleanup error paths in output init functions

Rename the jump labels according to the cleanup they perform, not the
location they're accessed from, and move functions from error checks to
cleanup paths, and move reference handling to simplify cleanup.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/dss/dpi.c

@@ -745,15 +745,14 @@ int dpi_init_port(struct dss_device *dss, struct platform_device *pdev,
 		return 0;
 
 	r = of_property_read_u32(ep, "data-lines", &datalines);
+	of_node_put(ep);
 	if (r) {
 		DSSERR("failed to parse datalines\n");
-		goto err_datalines;
+		return r;
 	}
 
 	dpi->data_lines = datalines;
 
-	of_node_put(ep);
-
 	dpi->pdev = pdev;
 	dpi->dss_model = dss_model;
 	dpi->dss = dss;
@@ -764,11 +763,6 @@ int dpi_init_port(struct dss_device *dss, struct platform_device *pdev,
 	dpi_init_output_port(dpi, port);
 
 	return 0;
-
-err_datalines:
-	of_node_put(ep);
-
-	return r;
 }
 
 void dpi_uninit_port(struct device_node *port)

drivers/gpu/drm/omapdrm/dss/dsi.c

@@ -5360,7 +5360,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 
 	r = dsi_runtime_get(dsi);
 	if (r)
-		goto err_runtime_get;
+		goto err_pm_disable;
 
 	rev = dsi_read_reg(dsi, DSI_REVISION);
 	dev_dbg(dev, "OMAP DSI rev %d.%d\n",
@@ -5381,7 +5381,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 	r = dsi_probe_of(dsi);
 	if (r) {
 		DSSERR("Invalid DSI DT data\n");
-		goto err_probe_of;
+		goto err_uninit_output;
 	}
 
 	r = of_platform_populate(dev->of_node, NULL, NULL, dev);
@@ -5404,11 +5404,10 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 
 	return 0;
 
-err_probe_of:
+err_uninit_output:
 	dsi_uninit_output(dsi);
 	dsi_runtime_put(dsi);
-
-err_runtime_get:
+err_pm_disable:
 	pm_runtime_disable(dev);
 	return r;
 }

drivers/gpu/drm/omapdrm/dss/hdmi4.c

@@ -780,16 +780,17 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
 	r = hdmi_audio_register(hdmi);
 	if (r) {
 		DSSERR("Registering HDMI audio failed\n");
-		hdmi_uninit_output(hdmi);
-		pm_runtime_disable(&pdev->dev);
-		return r;
+		goto err_uninit_output;
 	}
 
 	hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
 					       hdmi);
 
 	return 0;
 
+err_uninit_output:
+	hdmi_uninit_output(hdmi);
+	pm_runtime_disable(&pdev->dev);
 err_pll:
 	hdmi_pll_uninit(&hdmi->pll);
 err_free:

drivers/gpu/drm/omapdrm/dss/hdmi5.c

@@ -773,16 +773,17 @@ static int hdmi5_bind(struct device *dev, struct device *master, void *data)
 	r = hdmi_audio_register(hdmi);
 	if (r) {
 		DSSERR("Registering HDMI audio failed %d\n", r);
-		hdmi_uninit_output(hdmi);
-		pm_runtime_disable(&pdev->dev);
-		return r;
+		goto err_uninit_output;
 	}
 
 	hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
 						hdmi);
 
 	return 0;
 
+err_uninit_output:
+	hdmi_uninit_output(hdmi);
+	pm_runtime_disable(&pdev->dev);
 err_pll:
 	hdmi_pll_uninit(&hdmi->pll);
 err_free:

drivers/gpu/drm/omapdrm/dss/sdi.c

@@ -358,25 +358,22 @@ int sdi_init_port(struct dss_device *dss, struct platform_device *pdev,
 	}
 
 	r = of_property_read_u32(ep, "datapairs", &datapairs);
+	of_node_put(ep);
 	if (r) {
 		DSSERR("failed to parse datapairs\n");
-		goto err_datapairs;
+		goto err_free;
 	}
 
 	sdi->datapairs = datapairs;
 	sdi->dss = dss;
 
-	of_node_put(ep);
-
 	sdi->pdev = pdev;
 	port->data = sdi;
 
 	sdi_init_output(sdi);
 
 	return 0;
 
-err_datapairs:
-	of_node_put(ep);
 err_free:
 	kfree(sdi);
 

drivers/gpu/drm/omapdrm/dss/venc.c

@@ -867,7 +867,7 @@ static int venc_bind(struct device *dev, struct device *master, void *data)
 
 	r = venc_runtime_get(venc);
 	if (r)
-		goto err_runtime_get;
+		goto err_pm_disable;
 
 	rev_id = (u8)(venc_read_reg(venc, VENC_REV_ID) & 0xff);
 	dev_dbg(&pdev->dev, "OMAP VENC rev %d\n", rev_id);
@@ -877,7 +877,7 @@ static int venc_bind(struct device *dev, struct device *master, void *data)
 	r = venc_probe_of(venc);
 	if (r) {
 		DSSERR("Invalid DT data\n");
-		goto err_probe_of;
+		goto err_pm_disable;
 	}
 
 	venc->debugfs = dss_debugfs_create_file(dss, "venc", venc_dump_regs,
@@ -887,8 +887,7 @@ static int venc_bind(struct device *dev, struct device *master, void *data)
 
 	return 0;
 
-err_probe_of:
-err_runtime_get:
+err_pm_disable:
 	pm_runtime_disable(&pdev->dev);
 err_free:
 	kfree(venc);