[gtk+] icon-theme: Fix leaks on error

[Matthias Clasen <matthiasc src gnome org>]

commit 9701b58c4efb6375843a7bb67c8a3cdfac1d3f2a
Author: Victor Toso <me victortoso com>
Date:   Thu Sep 29 18:45:42 2016 +0200

    icon-theme: Fix leaks on error
    
    13 bytes in 1 blocks are definitely lost in loss record 766 of 16,875
       at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
       by 0xA9D0247: vasprintf (in /usr/lib64/libc-2.24.so)
       by 0xA2453FC: g_vasprintf (gprintf.c:316)
       by 0xA2152F7: g_strdup_vprintf (gstrfuncs.c:514)
       by 0xA21539C: g_strdup_printf (gstrfuncs.c:540)
       by 0x678F25C: gdk_rgba_to_string (gdkrgba.c:360)
       by 0x5FAE00D: rgba_to_string_noalpha (gtkicontheme.c:4322)
       by 0x5FAE6F2: gtk_icon_info_load_symbolic_svg (gtkicontheme.c:4492)
       by 0x5FAED4F: gtk_icon_info_load_symbolic_internal (gtkicontheme.c:4622)
       by 0x5FAEEE8: gtk_icon_info_load_symbolic (gtkicontheme.c:4711)
       by 0x5F00246: gtk_css_image_recolor_load (gtkcssimagerecolor.c:118)
       by 0x5F003E4: gtk_css_image_recolor_compute (gtkcssimagerecolor.c:170)
    
    14 bytes in 1 blocks are definitely lost in loss record 801 of 16,875
       at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
       by 0xA9D0247: vasprintf (in /usr/lib64/libc-2.24.so)
       by 0xA2453FC: g_vasprintf (gprintf.c:316)
       by 0xA2152F7: g_strdup_vprintf (gstrfuncs.c:514)
       by 0xA21539C: g_strdup_printf (gstrfuncs.c:540)
       by 0x678F25C: gdk_rgba_to_string (gdkrgba.c:360)
       by 0x5FAE00D: rgba_to_string_noalpha (gtkicontheme.c:4322)
       by 0x5FAE68E: gtk_icon_info_load_symbolic_svg (gtkicontheme.c:4482)
       by 0x5FAED4F: gtk_icon_info_load_symbolic_internal (gtkicontheme.c:4622)
       by 0x5FAEEE8: gtk_icon_info_load_symbolic (gtkicontheme.c:4711)
       by 0x5F00246: gtk_css_image_recolor_load (gtkcssimagerecolor.c:118)
       by 0x5F003E4: gtk_css_image_recolor_compute (gtkcssimagerecolor.c:170)
    
    15 bytes in 1 blocks are definitely lost in loss record 838 of 16,875
       at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
       by 0xA9D0247: vasprintf (in /usr/lib64/libc-2.24.so)
       by 0xA2453FC: g_vasprintf (gprintf.c:316)
       by 0xA2152F7: g_strdup_vprintf (gstrfuncs.c:514)
       by 0xA21539C: g_strdup_printf (gstrfuncs.c:540)
       by 0x678F25C: gdk_rgba_to_string (gdkrgba.c:360)
       by 0x5FAE00D: rgba_to_string_noalpha (gtkicontheme.c:4322)
       by 0x5FAE6C3: gtk_icon_info_load_symbolic_svg (gtkicontheme.c:4487)
       by 0x5FAED4F: gtk_icon_info_load_symbolic_internal (gtkicontheme.c:4622)
       by 0x5FAEEE8: gtk_icon_info_load_symbolic (gtkicontheme.c:4711)
       by 0x5F00246: gtk_css_image_recolor_load (gtkcssimagerecolor.c:118)
       by 0x5F003E4: gtk_css_image_recolor_compute (gtkcssimagerecolor.c:170)
    
    16,384 bytes in 1 blocks are definitely lost in loss record 16,847 of 16,875
       at 0x4C2DADE: malloc (vg_replace_malloc.c:298)
       by 0x4C2FC91: realloc (vg_replace_malloc.c:785)
       by 0xA1F89FA: g_realloc (gmem.c:159)
       by 0xA1BAD2E: g_array_maybe_expand (garray.c:779)
       by 0xA1BA566: g_array_set_size (garray.c:555)
       by 0xA1BBCB8: g_byte_array_set_size (garray.c:1752)
       by 0x8D1CC48: g_file_load_contents (gfile.c:6766)
       by 0x5FAE767: gtk_icon_info_load_symbolic_svg (gtkicontheme.c:4501)
       by 0x5FAED4F: gtk_icon_info_load_symbolic_internal (gtkicontheme.c:4622)
       by 0x5FAEEE8: gtk_icon_info_load_symbolic (gtkicontheme.c:4711)
       by 0x5F00246: gtk_css_image_recolor_load (gtkcssimagerecolor.c:118)
       by 0x5F003E4: gtk_css_image_recolor_compute (gtkcssimagerecolor.c:170)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=772215

 gtk/gtkicontheme.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 63b6f23..5a416b7 100644
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -4505,6 +4505,11 @@ gtk_icon_info_load_symbolic_svg (GtkIconInfo    *icon_info,
     {
       g_propagate_error (error, icon_info->load_error);
       icon_info->load_error = NULL;
+      g_free (css_fg);
+      g_free (css_warning);
+      g_free (css_error);
+      g_free (css_success);
+      g_free (file_data);
       return NULL;
     }
 
@@ -4517,7 +4522,14 @@ gtk_icon_info_load_symbolic_svg (GtkIconInfo    *icon_info,
       g_object_unref (stream);
 
       if (!pixbuf)
-        return NULL;
+        {
+          g_free (css_fg);
+          g_free (css_warning);
+          g_free (css_error);
+          g_free (css_success);
+          g_free (file_data);
+          return NULL;
+        }
 
       icon_info->symbolic_width = gdk_pixbuf_get_width (pixbuf);
       icon_info->symbolic_height = gdk_pixbuf_get_height (pixbuf);