gstvalue: reset errno before g_ascii_strtoull call

"errno" already has meaningless value before g_ascii_strtoull call.
This causes invalid error check without reset.

https://bugzilla.gnome.org/show_bug.cgi?id=747690

diff --git a/gst/gstvalue.c b/gst/gstvalue.c
index 21771eb..123e51e 100644 (file)
--- a/gst/gstvalue.c
+++ b/gst/gstvalue.c
@@ -5839,6 +5839,7 @@ gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
   if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
     return FALSE;
 
+  errno = 0;
   val = g_ascii_strtoull (s, &endptr, 16);
   if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
     return FALSE;