[sysprof] capture-writer: finalize if allocate failed

[Christian Hergert <chergert src gnome org>]

commit f11aaa189f0897f7edb3a44b9b22349e258cd504
Author: Christian Hergert <chergert redhat com>
Date:   Sun Nov 20 20:26:34 2016 -0800

    capture-writer: finalize if allocate failed

 lib/sp-capture-writer.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/lib/sp-capture-writer.c b/lib/sp-capture-writer.c
index b81f1e2..8e2e082 100644
--- a/lib/sp-capture-writer.c
+++ b/lib/sp-capture-writer.c
@@ -433,8 +433,12 @@ sp_capture_writer_new_from_fd (int   fd,
   nowstr = g_time_val_to_iso8601 (&tv);
 
   header = sp_capture_writer_allocate (self, &header_len);
-  if (!header)
-    return NULL;
+
+  if (header == NULL)
+    {
+      sp_capture_writer_finalize (self);
+      return NULL;
+    }
 
   header->magic = SP_CAPTURE_MAGIC;
   header->version = 1;