mtd: maps: pxa2xx-flash: show parent device in sysfs

Fix a bug where mtd parent device symlinks aren't shown in sysfs.

While at it, make use of the default owner value set by mtdcore.

Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index 5ff6cc5..7497090 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -93,7 +93,7 @@
 			iounmap(info->map.cached);
 		return -EIO;
 	}
-	info->mtd->owner = THIS_MODULE;
+	info->mtd->dev.parent = &pdev->dev;
 
 	mtd_device_parse_register(info->mtd, probes, NULL, flash->parts,
 				  flash->nr_parts);