From: Andre Noll <maan@systemlinux.org>
Date: Thu, 5 Mar 2009 21:03:14 +0000 (+0100)
Subject: Avoid division by zero in setup_next_fec_group().
X-Git-Tag: v0.3.4~52
X-Git-Url: http://git.tue.mpg.de/?a=commitdiff_plain;h=132ab6b63568104d28af23a9682c770a0aaedf03;p=paraslash.git

Avoid division by zero in setup_next_fec_group().

This needs more work.
---

diff --git a/vss.c b/vss.c
index 4efe38f6..d0e1cf53 100644
--- a/vss.c
+++ b/vss.c
@@ -238,6 +238,9 @@ static int setup_next_fec_group(struct fec_client *fc, struct vss_task *vsst)
 	fc->group.num_chunks = i - fc->group.first_chunk;
 	fc->slice.num = 0;
 	fc->slice.bytes = ROUND_UP(fc->group.bytes, k) / k;
+	/* FIXME: Avoid division by zero in a better way */
+	if (!fc->slice.bytes)
+		return 0;
 
 	/* The last slice will not be fully used */
 	last_payload_size = fc->group.bytes % fc->slice.bytes;