From: David Vossel <dvossel@digium.com>
Date: Mon, 24 May 2010 19:37:55 +0000 (+0000)
Subject: fixes segfault when using generic plc
X-Git-Tag: 1.4.33-rc1~14
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6105e07933f539da6901d085d76f22a563449201;p=thirdparty%2Fasterisk.git

fixes segfault when using generic plc


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@265365 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/main/channel.c b/main/channel.c
index 15dba8684b..0f3413362e 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -2938,6 +2938,11 @@ static void adjust_frame_for_plc(struct ast_channel *chan, struct ast_frame *fra
 	int num_new_samples = frame->samples;
 	struct plc_ds *plc = datastore->data;
 
+	/* If this audio frame has no samples to fill in, ignore it */
+	if (!num_new_samples) {
+		return;
+	}
+
 	/* First, we need to be sure that our buffer is large enough to accomodate
 	 * the samples we need to fill in. This will likely only occur on the first
 	 * frame we write.