bridge_native_rtp.c: Defer allocation and check if it fails in native_rtp_bridge_comp...

Review: https://reviewboard.asterisk.org/r/4601/

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@434508 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/bridges/bridge_native_rtp.c b/bridges/bridge_native_rtp.c
index 980f467164378f82cc1c23ff4b070a43e51b6d57..d5652bc78fe14d80d69a7bf03a00e97fbb118006 100644 (file)
--- a/bridges/bridge_native_rtp.c
+++ b/bridges/bridge_native_rtp.c
@@ -310,8 +310,8 @@ static int native_rtp_bridge_compatible(struct ast_bridge *bridge)
        RAII_VAR(struct ast_rtp_instance *, instance1, NULL, ao2_cleanup);
        RAII_VAR(struct ast_rtp_instance *, vinstance0, NULL, ao2_cleanup);
        RAII_VAR(struct ast_rtp_instance *, vinstance1, NULL, ao2_cleanup);
-       RAII_VAR(struct ast_format_cap *, cap0, ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT), ao2_cleanup);
-       RAII_VAR(struct ast_format_cap *, cap1, ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT), ao2_cleanup);
+       RAII_VAR(struct ast_format_cap *, cap0, NULL, ao2_cleanup);
+       RAII_VAR(struct ast_format_cap *, cap1, NULL, ao2_cleanup);
        int read_ptime0, read_ptime1, write_ptime0, write_ptime1;
 
        /* We require two channels before even considering native bridging */
@@ -361,6 +361,12 @@ static int native_rtp_bridge_compatible(struct ast_bridge *bridge)
                return 0;
        }
 
+       cap0 = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
+       cap1 = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
+       if (!cap0 || !cap1) {
+               return 0;
+       }
+
        /* Make sure that codecs match */
        if (glue0->get_codec) {
                glue0->get_codec(bc0->chan, cap0);