video: fbdev: imxfb: Fix missing of_node_put in imxfb_probe

of_parse_phandle returns node pointer with refcount incremented,
use of_node_put() on it when done.

Reported-by: Zeal Robot <[e-mail]>
Signed-off-by: Lv Ruyi <[e-mail]>
Signed-off-by: Helge Deller <[e-mail]>

drivers/video/fbdev/imxfb.c

···
 				sizeof(struct imx_fb_videomode), GFP_KERNEL);
 		if (!fbi->mode) {
 			ret = -ENOMEM;
+			of_node_put(display_np);
 			goto failed_of_parse;
 		}
 
 		ret = imxfb_of_read_mode(&pdev->dev, display_np, fbi->mode);
+		of_node_put(display_np);
 		if (ret)
 			goto failed_of_parse;
 	}