gbfile: Tweak gbfile (memapi) close function.

diff --git a/gpsbabel/gbfile.c b/gpsbabel/gbfile.c
index bec1cf55ce579cb788841b68bdc8dd7e1de8a80e..ff7315545a857335c47a501fc69fed0aec677f21 100644 (file)
--- a/gpsbabel/gbfile.c
+++ b/gpsbabel/gbfile.c
@@ -352,7 +352,7 @@ memapi_open(gbfile *self, const char *mode)
 static int
 memapi_close(gbfile *self)
 {
-       xfree(self->handle.mem);
+       if (self->handle.mem) xfree(self->handle.mem);
 
        return 0;
 }