[PATCH 5.10 101/103] regmap: debugfs: Fix a reversed if statement in regmap_debugfs_init()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpen...@oracle.com>

commit f6bcb4c7f366905b66ce8ffca7190118244bb642 upstream.

This code will leak "map->debugfs_name" because the if statement is
reversed so it only frees NULL pointers instead of non-NULL.  In
fact the if statement is not required and should just be removed
because kfree() accepts NULL pointers.

Fixes: cffa4b2122f5 ("regmap: debugfs: Fix a memory leak when calling 
regmap_attach_dev")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Link: https://lore.kernel.org/r/X/RQpfAwRdLg0GqQ@mwanda
Signed-off-by: Mark Brown <broo...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/base/regmap/regmap-debugfs.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -594,9 +594,7 @@ void regmap_debugfs_init(struct regmap *
        }
 
        if (!strcmp(name, "dummy")) {
-               if (!map->debugfs_name)
-                       kfree(map->debugfs_name);
-
+               kfree(map->debugfs_name);
                map->debugfs_name = kasprintf(GFP_KERNEL, "dummy%d",
                                                dummy_index);
                if (!map->debugfs_name)