[PATCH 3/3] drm/bridge: fsl-ldb: simplify device_node error handling

[Marco Felsch]

Make use of __free(device_node) to simplify the of_node_put() error
handling paths. No functional changes.

Signed-off-by: Marco Felsch <m.fel...@pengutronix.de>
---
 drivers/gpu/drm/bridge/fsl-ldb.c | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c
index e0a229c91953..cea9ddaa5e01 100644
--- a/drivers/gpu/drm/bridge/fsl-ldb.c
+++ b/drivers/gpu/drm/bridge/fsl-ldb.c
@@ -287,8 +287,9 @@ static const struct drm_bridge_funcs funcs = {
 static int fsl_ldb_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
-       struct device_node *panel_node;
-       struct device_node *remote1, *remote2;
+       struct device_node *panel_node __free(device_node) = NULL;
+       struct device_node *remote1 __free(device_node) = NULL;
+       struct device_node *remote2 __free(device_node) = NULL;
        struct drm_panel *panel;
        struct fsl_ldb *fsl_ldb;
        int dual_link;
@@ -321,21 +322,16 @@ static int fsl_ldb_probe(struct platform_device *pdev)
        remote2 = of_graph_get_remote_node(dev->of_node, 2, 0);
        fsl_ldb->ch0_enabled = (remote1 != NULL);
        fsl_ldb->ch1_enabled = (remote2 != NULL);
-       panel_node = of_node_get(remote1 ? remote1 : remote2);
-       of_node_put(remote1);
-       of_node_put(remote2);
+       panel_node = remote1 ? remote1 : remote2;
 
-       if (!fsl_ldb->ch0_enabled && !fsl_ldb->ch1_enabled) {
-               of_node_put(panel_node);
+       if (!fsl_ldb->ch0_enabled && !fsl_ldb->ch1_enabled)
                return dev_err_probe(dev, -ENXIO, "No panel node found");
-       }
 
        dev_dbg(dev, "Using %s\n",
                fsl_ldb_is_dual(fsl_ldb) ? "dual-link mode" :
                fsl_ldb->ch0_enabled ? "channel 0" : "channel 1");
 
        panel = of_drm_find_panel(panel_node);
-       of_node_put(panel_node);
        if (IS_ERR(panel))
                return dev_err_probe(dev, PTR_ERR(panel), "drm panel not 
found\n");
 
@@ -345,14 +341,12 @@ static int fsl_ldb_probe(struct platform_device *pdev)
                                     "drm panel-bridge add failed\n");
 
        if (fsl_ldb_is_dual(fsl_ldb)) {
-               struct device_node *port1, *port2;
+               struct device_node *port1 __free(device_node) =
+                       of_graph_get_port_by_id(dev->of_node, 1);
+               struct device_node *port2 __free(device_node) =
+                       of_graph_get_port_by_id(dev->of_node, 2);
 
-               port1 = of_graph_get_port_by_id(dev->of_node, 1);
-               port2 = of_graph_get_port_by_id(dev->of_node, 2);
                dual_link = drm_of_lvds_get_dual_link_pixel_order(port1, port2);
-               of_node_put(port1);
-               of_node_put(port2);
-
                if (dual_link < 0)
                        return dev_err_probe(dev, dual_link,
                                             "Error getting dual link 
configuration\n");
-- 
2.39.5