1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 45d812c0ea77..bdd88708e4d6 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -473,6 +473,7 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
 {
         struct rb_node *next;
         struct regmap_range_node *range_node;
+        const char *devname = "dummy";
 
         /* If we don't have the debugfs root yet, postpone init */
         if (!regmap_debugfs_root) {
@@ -491,12 +492,15 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
         INIT_LIST_HEAD(&map->debugfs_off_cache);
         mutex_init(&map->cache_lock);
 
+        if (map->dev)
+                devname = dev_name(map->dev);
+
         if (name) {
                 map->debugfs_name = kasprintf(GFP_KERNEL, "%s-%s",
-                                              dev_name(map->dev), name);
+                                              devname, name);
                 name = map->debugfs_name;
         } else {
-                name = dev_name(map->dev);
+                name = devname;
         }
 
         map->debugfs = debugfs_create_dir(name, regmap_debugfs_root);