lib: Fix missing error handling when SDP record is NULL

diff --git a/lib/sdp.c b/lib/sdp.c
index 155eca5..eb408a9 100644 (file)
--- a/lib/sdp.c
+++ b/lib/sdp.c
@@ -932,8 +932,12 @@ int sdp_gen_record_pdu(const sdp_record_t *rec, sdp_buf_t *buf)
 
 void sdp_attr_replace(sdp_record_t *rec, uint16_t attr, sdp_data_t *d)
 {
-       sdp_data_t *p = sdp_data_get(rec, attr);
+       sdp_data_t *p;
+
+       if (!rec)
+               return;
 
+       p = sdp_data_get(rec, attr);
        if (p) {
                rec->attrlist = sdp_list_remove(rec->attrlist, p);
                sdp_data_free(p);
@@ -1667,7 +1671,7 @@ void sdp_data_print(sdp_data_t *d)
 
 sdp_data_t *sdp_data_get(const sdp_record_t *rec, uint16_t attrId)
 {
-       if (rec->attrlist) {
+       if (rec && rec->attrlist) {
                sdp_data_t sdpTemplate;
                sdp_list_t *p;