efivarfs: efivarfs_fill_super() ensure we free our temporary name

d_alloc_name() copies the passed name to new storage, once complete we
no longer need our name.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index adfc4863202b..36b3dd6e1e5e 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -992,6 +992,8 @@ int efivarfs_fill_super(struct super_block *sb, void *data, int silent)
                 inode = efivarfs_get_inode(efivarfs_sb, root->d_inode,
                                           S_IFREG | 0644, 0);
                 dentry = d_alloc_name(root, name);
+                /* copied by the above to local storage in the dentry. */
+                kfree(name);
 
                 efivars->ops->get_variable(entry->var.VariableName,
                                            &entry->var.VendorGuid,