[mutter] Use more g_autofoo throughout mutter

[Jasper St. Pierre <jstpierre src gnome org>]

commit 4d80a4cc3162ed56b24cd3514bf411146d84ac0f
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri May 29 17:17:34 2015 -0700

    Use more g_autofoo throughout mutter

 src/backends/meta-monitor-config.c             |   24 ++-------
 src/backends/meta-monitor-manager.c            |   18 ++-----
 src/backends/native/meta-launcher.c            |   42 ++++------------
 src/backends/x11/meta-monitor-manager-xrandr.c |   60 +++++++-----------------
 src/core/meta-accel-parse.c                    |   17 +------
 5 files changed, 42 insertions(+), 119 deletions(-)
---
diff --git a/src/backends/meta-monitor-config.c b/src/backends/meta-monitor-config.c
index c067bd2..c129c53 100644
--- a/src/backends/meta-monitor-config.c
+++ b/src/backends/meta-monitor-config.c
@@ -886,14 +886,14 @@ apply_configuration (MetaMonitorConfig  *self,
                      MetaConfiguration  *config,
                     MetaMonitorManager *manager)
 {
-  GPtrArray *crtcs, *outputs;
-  gboolean ret = FALSE;
+  g_autoptr(GPtrArray) crtcs = NULL;
+  g_autoptr(GPtrArray) outputs = NULL;
 
   crtcs = g_ptr_array_new_full (config->n_outputs, (GDestroyNotify)meta_crtc_info_free);
   outputs = g_ptr_array_new_full (config->n_outputs, (GDestroyNotify)meta_output_info_free);
 
   if (!meta_monitor_config_assign_crtcs (config, manager, crtcs, outputs))
-    goto out;
+    return FALSE;
 
   meta_monitor_manager_apply_configuration (manager,
                                             (MetaCRTCInfo**)crtcs->pdata, crtcs->len,
@@ -905,12 +905,7 @@ apply_configuration (MetaMonitorConfig  *self,
    * inside turn_off_laptop_display / apply_configuration_with_lid */
   self->current_is_for_laptop_lid = FALSE;
 
-  ret = TRUE;
-
- out:
-  g_ptr_array_unref (crtcs);
-  g_ptr_array_unref (outputs);
-  return ret;
+  return TRUE;
 }
 
 static gboolean
@@ -1840,7 +1835,6 @@ real_assign_crtcs (CrtcAssignment     *assignment,
   MetaOutputKey *output_key;
   MetaOutputConfig *output_config;
   unsigned int i;
-  gboolean success;
 
   if (output_num == assignment->config->n_outputs)
     return TRUE;
@@ -1857,8 +1851,6 @@ real_assign_crtcs (CrtcAssignment     *assignment,
                                       &crtcs, &n_crtcs,
                                       &outputs, &n_outputs);
 
-  success = FALSE;
-
   for (i = 0; i < n_crtcs; i++)
     {
       MetaCRTC *crtc = &crtcs[i];
@@ -1905,10 +1897,7 @@ real_assign_crtcs (CrtcAssignment     *assignment,
                                               output))
                     {
                       if (real_assign_crtcs (assignment, output_num + 1))
-                        {
-                          success = TRUE;
-                          goto out;
-                        }
+                        return TRUE;
 
                       crtc_assignment_unassign (assignment, crtc, output);
                     }
@@ -1917,8 +1906,7 @@ real_assign_crtcs (CrtcAssignment     *assignment,
        }
     }
 
-out:
-  return success;
+  return FALSE;
 }
 
 static gboolean
diff --git a/src/backends/meta-monitor-manager.c b/src/backends/meta-monitor-manager.c
index 90eba48..b5304d6 100644
--- a/src/backends/meta-monitor-manager.c
+++ b/src/backends/meta-monitor-manager.c
@@ -368,16 +368,14 @@ static char *
 make_display_name (MetaMonitorManager *manager,
                    MetaOutput         *output)
 {
-  char *inches = NULL;
-  char *vendor_name = NULL;
-  char *ret;
+  g_autofree char *inches = NULL;
+  g_autofree char *vendor_name = NULL;
 
   switch (output->connector_type)
     {
     case META_CONNECTOR_TYPE_LVDS:
     case META_CONNECTOR_TYPE_eDP:
-      ret = g_strdup (_("Built-in display"));
-      goto out;
+      return g_strdup (_("Built-in display"));
     default:
       break;
     }
@@ -413,18 +411,12 @@ make_display_name (MetaMonitorManager *manager,
       /* TRANSLATORS: this is a monitor vendor name, followed by a
        * size in inches, like 'Dell 15"'
        */
-      ret = g_strdup_printf (_("%s %s"), vendor_name, inches);
+      return g_strdup_printf (_("%s %s"), vendor_name, inches);
     }
   else
     {
-      ret = g_strdup (vendor_name);
+      return g_strdup (vendor_name);
     }
-
- out:
-  g_free (inches);
-  g_free (vendor_name);
-
-  return ret;
 }
 
 static const char *
diff --git a/src/backends/native/meta-launcher.c b/src/backends/native/meta-launcher.c
index 72fb82e..208bd89 100644
--- a/src/backends/native/meta-launcher.c
+++ b/src/backends/native/meta-launcher.c
@@ -130,9 +130,8 @@ take_device (Login1Session *session_proxy,
              GCancellable  *cancellable,
              GError       **error)
 {
-  gboolean ret = FALSE;
-  GVariant *fd_variant = NULL;
-  GUnixFDList *fd_list = NULL;
+  g_autoptr (GVariant) fd_variant = NULL;
+  g_autoptr (GUnixFDList) fd_list = NULL;
   int fd = -1;
 
   if (!login1_session_call_take_device_sync (session_proxy,
@@ -144,21 +143,14 @@ take_device (Login1Session *session_proxy,
                                              &fd_list,
                                              cancellable,
                                              error))
-    goto out;
+    return FALSE;
 
   fd = g_unix_fd_list_get (fd_list, g_variant_get_handle (fd_variant), error);
   if (fd == -1)
-    goto out;
+    return FALSE;
 
   *out_fd = fd;
-  ret = TRUE;
-
- out:
-  if (fd_variant)
-    g_variant_unref (fd_variant);
-  if (fd_list)
-    g_object_unref (fd_list);
-  return ret;
+  return TRUE;
 }
 
 static gboolean
@@ -166,22 +158,16 @@ get_device_info_from_path (const char *path,
                            int        *out_major,
                            int        *out_minor)
 {
-  gboolean ret = FALSE;
   int r;
   struct stat st;
 
   r = stat (path, &st);
-  if (r < 0)
-    goto out;
-  if (!S_ISCHR (st.st_mode))
-    goto out;
+  if (r < 0 || !S_ISCHR (st.st_mode))
+    return FALSE;
 
   *out_major = major (st.st_rdev);
   *out_minor = minor (st.st_rdev);
-  ret = TRUE;
-
- out:
-  return ret;
+  return TRUE;
 }
 
 static gboolean
@@ -189,22 +175,16 @@ get_device_info_from_fd (int  fd,
                          int *out_major,
                          int *out_minor)
 {
-  gboolean ret = FALSE;
   int r;
   struct stat st;
 
   r = fstat (fd, &st);
-  if (r < 0)
-    goto out;
-  if (!S_ISCHR (st.st_mode))
-    goto out;
+  if (r < 0 || !S_ISCHR (st.st_mode))
+    return FALSE;
 
   *out_major = major (st.st_rdev);
   *out_minor = minor (st.st_rdev);
-  ret = TRUE;
-
- out:
-  return ret;
+  return TRUE;
 }
 
 static int
diff --git a/src/backends/x11/meta-monitor-manager-xrandr.c b/src/backends/x11/meta-monitor-manager-xrandr.c
index 387a0ce..70bef2e 100644
--- a/src/backends/x11/meta-monitor-manager-xrandr.c
+++ b/src/backends/x11/meta-monitor-manager-xrandr.c
@@ -194,11 +194,10 @@ static gboolean
 output_get_boolean_property (MetaMonitorManagerXrandr *manager_xrandr,
                              MetaOutput *output, const char *propname)
 {
-  gboolean value = FALSE;
   Atom atom, actual_type;
   int actual_format;
   unsigned long nitems, bytes_after;
-  unsigned char *buffer;
+  g_autofree unsigned char *buffer = NULL;
 
   atom = XInternAtom (manager_xrandr->xdisplay, propname, False);
   XRRGetOutputProperty (manager_xrandr->xdisplay,
@@ -209,13 +208,9 @@ output_get_boolean_property (MetaMonitorManagerXrandr *manager_xrandr,
                         &nitems, &bytes_after, &buffer);
 
   if (actual_type != XA_CARDINAL || actual_format != 32 || nitems < 1)
-    goto out;
-
-  value = ((int*)buffer)[0];
+    return FALSE;
 
- out:
-  XFree (buffer);
-  return value;
+  return ((int*)buffer)[0];
 }
 
 static gboolean
@@ -229,12 +224,11 @@ static gboolean
 output_get_underscanning_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
                                  MetaOutput               *output)
 {
-  gboolean value = FALSE;
   Atom atom, actual_type;
   int actual_format;
   unsigned long nitems, bytes_after;
-  unsigned char *buffer;
-  char *str;
+  g_autofree unsigned char *buffer = NULL;
+  g_autofree char *str = NULL;
 
   atom = XInternAtom (manager_xrandr->xdisplay, "underscan", False);
   XRRGetOutputProperty (manager_xrandr->xdisplay,
@@ -244,17 +238,11 @@ output_get_underscanning_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
                         &actual_type, &actual_format,
                         &nitems, &bytes_after, &buffer);
 
-  if (actual_type != XA_ATOM || actual_format != 32 ||
-      nitems < 1)
-    goto out;
+  if (actual_type != XA_ATOM || actual_format != 32 || nitems < 1)
+    return FALSE;
 
   str = XGetAtomName (manager_xrandr->xdisplay, *(Atom *)buffer);
-  value = !strcmp(str, "on");
-  XFree (str);
-
-out:
-  XFree (buffer);
-  return value;
+  return (strcmp (str, "on") == 0);
 }
 
 static int
@@ -273,7 +261,7 @@ output_get_backlight_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
   Atom atom, actual_type;
   int actual_format;
   unsigned long nitems, bytes_after;
-  unsigned char *buffer;
+  g_autofree unsigned char *buffer = NULL;
 
   atom = XInternAtom (manager_xrandr->xdisplay, "Backlight", False);
   XRRGetOutputProperty (manager_xrandr->xdisplay,
@@ -284,12 +272,9 @@ output_get_backlight_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
                         &nitems, &bytes_after, &buffer);
 
   if (actual_type != XA_INTEGER || actual_format != 32 || nitems < 1)
-    goto out;
+    return FALSE;
 
   value = ((int*)buffer)[0];
-
- out:
-  XFree (buffer);
   if (value > 0)
     return normalize_backlight (output, value);
   else
@@ -302,7 +287,7 @@ output_get_backlight_limits_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
 {
   Atom atom;
   xcb_connection_t *xcb_conn;
-  xcb_randr_query_output_property_reply_t *reply;
+  g_autofree xcb_randr_query_output_property_reply_t *reply;
 
   atom = XInternAtom (manager_xrandr->xdisplay, "Backlight", False);
 
@@ -320,15 +305,12 @@ output_get_backlight_limits_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
   if (!reply->range || reply->length != 2)
     {
       meta_verbose ("backlight %s was not range\n", output->name);
-      goto out;
+      return;
     }
 
   int32_t *values = xcb_randr_query_output_property_valid_values (reply);
   output->backlight_min = values[0];
   output->backlight_max = values[1];
-
-out:
-  free (reply);
 }
 
 static int
@@ -479,11 +461,10 @@ static MetaConnectorType
 output_get_connector_type_from_prop (MetaMonitorManagerXrandr *manager_xrandr,
                                      MetaOutput               *output)
 {
-  MetaConnectorType ret = META_CONNECTOR_TYPE_Unknown;
   Atom atom, actual_type, connector_type_atom;
   int actual_format;
   unsigned long nitems, bytes_after;
-  unsigned char *buffer;
+  g_autofree unsigned char *buffer = NULL;
 
   atom = XInternAtom (manager_xrandr->xdisplay, "ConnectorType", False);
   XRRGetOutputProperty (manager_xrandr->xdisplay,
@@ -494,14 +475,10 @@ output_get_connector_type_from_prop (MetaMonitorManagerXrandr *manager_xrandr,
                         &nitems, &bytes_after, &buffer);
 
   if (actual_type != XA_ATOM || actual_format != 32 || nitems < 1)
-    goto out;
+    return META_CONNECTOR_TYPE_Unknown;
 
   connector_type_atom = ((Atom *) buffer)[0];
-  ret = connector_type_from_atom (manager_xrandr, connector_type_atom);
-
- out:
-  meta_XFree (buffer);
-  return ret;
+  return connector_type_from_atom (manager_xrandr, connector_type_atom);
 }
 
 static MetaConnectorType
@@ -1068,7 +1045,7 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
       if (crtc_info->mode != NULL)
         {
           MetaMonitorMode *mode;
-          XID *outputs;
+          g_autofree XID *outputs = NULL;
           unsigned int j, n_outputs;
           int width, height;
           Status ok;
@@ -1105,7 +1082,7 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
                             (unsigned)(crtc->crtc_id), (unsigned)(mode->mode_id),
                             mode->width, mode->height, (float)mode->refresh_rate,
                             crtc_info->x, crtc_info->y, crtc_info->transform);
-              goto next;
+              continue;
             }
 
           if (meta_monitor_transform_is_rotated (crtc_info->transform))
@@ -1125,9 +1102,6 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
           crtc->rect.height = height;
           crtc->current_mode = mode;
           crtc->transform = crtc_info->transform;
-
-        next:
-          g_free (outputs);
         }
     }
 
diff --git a/src/core/meta-accel-parse.c b/src/core/meta-accel-parse.c
index e32f6b9..9cea488 100644
--- a/src/core/meta-accel-parse.c
+++ b/src/core/meta-accel-parse.c
@@ -176,7 +176,6 @@ static gboolean
 accelerator_parse (const gchar         *accelerator,
                    MetaKeyCombo        *combo)
 {
-  gboolean error = FALSE;
   guint keyval, keycode;
   MetaVirtualModifier mods;
   gint len;
@@ -186,10 +185,7 @@ accelerator_parse (const gchar         *accelerator,
   combo->modifiers = 0;
 
   if (accelerator == NULL)
-    {
-      error = TRUE;
-      goto out;
-    }
+    return FALSE;
 
   keyval = 0;
   keycode = 0;
@@ -310,10 +306,7 @@ accelerator_parse (const gchar         *accelerator,
                   g_free (with_xf86);
 
                   if (keyval == XKB_KEY_NoSymbol)
-                    {
-                      error = TRUE;
-                      goto out;
-                    }
+                    return FALSE;
                 }
            }
 
@@ -322,14 +315,10 @@ accelerator_parse (const gchar         *accelerator,
         }
     }
 
-out:
-  if (error)
-    return FALSE;
-
+ out:
   combo->keysym = keyval;
   combo->keycode = keycode;
   combo->modifiers = mods;
-
   return TRUE;
 }