[retro-gtk] retro-core: Fix compilation errors due to returning a value

[Bastien Nocera <hadess src gnome org>]

commit 47b1e1a89cf06d6d3d2cf851e96dbff953701b00
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 16 06:53:47 2017 +0100

    retro-core: Fix compilation errors due to returning a value
    
    When none are expected. Seems like the front-end doesn't expect one
    either so remove those returns with a value.

 retro-gtk/retro-core.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/retro-gtk/retro-core.c b/retro-gtk/retro-core.c
index 81d5e3b..4d5af82 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -69,8 +69,8 @@ void retro_core_deserialize_state (RetroCore *self, guint8 *data, gsize length,
        gsize size;
        gboolean success;
 
-       g_return_val_if_fail (self != NULL, NULL);
-       g_return_val_if_fail (data != NULL, NULL);
+       g_return_if_fail (self != NULL);
+       g_return_if_fail (data != NULL);
 
        serialize_size = retro_module_get_serialize_size (self->module);
 
@@ -84,7 +84,7 @@ void retro_core_deserialize_state (RetroCore *self, guint8 *data, gsize length,
                             RETRO_CORE_ERROR_SERIALIZATION_NOT_SUPPORTED,
                             "Couldn't deserialize the internal state: serialization not supported.");
 
-               return NULL;
+               return;
        }
 
        if (length > size) {
@@ -93,7 +93,7 @@ void retro_core_deserialize_state (RetroCore *self, guint8 *data, gsize length,
                             RETRO_CORE_ERROR_COULDNT_DESERIALIZE,
                             "Couldn't deserialize the internal state: expected at most %llu bytes, got 
%llu.", size, length);
 
-               return NULL;
+               return;
        }
 
        unserialize = retro_module_get_unserialize (self->module);
@@ -107,8 +107,6 @@ void retro_core_deserialize_state (RetroCore *self, guint8 *data, gsize length,
                             RETRO_CORE_ERROR,
                             RETRO_CORE_ERROR_COULDNT_DESERIALIZE,
                             "Couldn't deserialize the internal state: deserialization failed.");
-
-               return NULL;
        }
 }