[librsvg] filter: Plug a leak

[Carlos Garnacho <carlosg src gnome org>]

commit e3983543c98c03babe8956d7911f0bd1ec5550a9
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Aug 4 12:45:23 2015 +0200

    filter: Plug a leak
    
    https://bugzilla.gnome.org/show_bug.cgi?id=748608

 rsvg-filter.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/rsvg-filter.c b/rsvg-filter.c
index 35cd1e8..dfcdc20 100644
--- a/rsvg-filter.c
+++ b/rsvg-filter.c
@@ -1761,7 +1761,7 @@ gaussian_blur_surface (cairo_surface_t *in,
         gdouble *gaussian_matrix;
         gint gaussian_matrix_len;
         int y;
-        guchar *row_buffer;
+        guchar *row_buffer = NULL;
         guchar *row1, *row2;
 
         if (use_box_blur) {
@@ -1805,6 +1805,8 @@ gaussian_blur_surface (cairo_surface_t *in,
         if (!use_box_blur)
             g_free (gaussian_matrix);
 
+        g_free (row_buffer);
+
         out_has_data = TRUE;
     } else
         out_has_data = FALSE;