From: Benjamin Gilbert <bgilbert@cs.cmu.edu>
Date: Wed, 11 Mar 2015 04:28:36 +0000 (-0400)
Subject: hddtemp: Improve robustness of test
X-Git-Tag: collectd-5.7.0~72^2~1
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=442696dca3162676b63735afaf94c2b35d5ad840

hddtemp: Improve robustness of test

Don't rely on signedness of buffer_size.
---

diff --git a/src/hddtemp.c b/src/hddtemp.c
index 4e275dc8..11785376 100644
--- a/src/hddtemp.c
+++ b/src/hddtemp.c
@@ -171,7 +171,7 @@ static char *hddtemp_query_daemon (void)
 	buffer_fill = 0;
 	while (1)
 	{
-		if (buffer_fill >= buffer_size - 1)
+		if ((buffer_size == 0) || (buffer_fill >= buffer_size - 1))
 		{
 			if (buffer_size == 0)
 				buffer_size = 1024;