of/unittest: Missing unlocks on error

Static checkers complain that we should unlock before returning.  Which
is true.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 6b8f3e6aa43c..987a1530282a 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -2210,14 +2210,14 @@ static __init void of_unittest_overlay_high_level(void)
                                 unittest(0,
                                          "duplicate property '%s' in overlay_base node __symbols__",
                                          prop->name);
-                                return;
+                                goto err_unlock;
                         }
                         ret = __of_add_property_sysfs(of_symbols, prop);
                         if (ret) {
                                 unittest(0,
                                          "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
                                          prop->name);
-                                return;
+                                goto err_unlock;
                         }
                 }
         }
@@ -2232,6 +2232,10 @@ static __init void of_unittest_overlay_high_level(void)
 
         unittest(overlay_data_add(2),
                  "Adding overlay 'overlay_bad_phandle' failed\n");
+        return;
+
+err_unlock:
+        mutex_unlock(&of_mutex);
 }
 
 #else