From: David Vossel <dvossel@digium.com>
Date: Mon, 24 May 2010 16:10:09 +0000 (+0000)
Subject: fixes segfault when using generic plc
X-Git-Tag: 11.0.0-beta1~2982
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fdb698ca2be630f0fe5ea8cf239c016633c06cbc;p=thirdparty%2Fasterisk.git

fixes segfault when using generic plc


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@265273 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/main/channel.c b/main/channel.c
index 637f162853..ba34117e03 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -4154,6 +4154,12 @@ 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.