[telepathy-sofiasip/master] Guard against a null fmtp parameter for codec parser

[Mikhail Zabaluev]

---
 tpsip/codec-param-formats.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/tpsip/codec-param-formats.c b/tpsip/codec-param-formats.c
index c271492..4754fe3 100644
--- a/tpsip/codec-param-formats.c
+++ b/tpsip/codec-param-formats.c
@@ -71,7 +71,7 @@ tpsip_codec_param_format (TpMediaStreamType media, const char *name,
  * tpsip_codec_param_parse:
  * @media: the media type
  * @name: name of the codec, as per its MIME subtype registration
- * @fmtp: a string with the codec-specific parameter data
+ * @fmtp: a string with the codec-specific parameter data. May be #NULL.
  * @out: the parameter map to populate
  *
  * Parses the payload-specific parameter description as coming from an
@@ -84,6 +84,9 @@ tpsip_codec_param_parse (TpMediaStreamType media, const char *name,
 {
   TpsipCodecParamFormatting *fmt;
 
+  if (fmtp == NULL)
+    return;
+
   /* XXX: thread unsafe, we don't care for now */
   fmt = g_hash_table_lookup (codec_param_formats[media], name);
 
-- 
1.5.6.5