From 66a7ed23cb3fbfea574b79d3ca4aed9f626c6e3f Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Fri, 22 Dec 2006 01:35:21 +0000
Subject: Make start_timer() and stop_timer() robust against incorrect usage.

---
 src/include/gpxe/retry.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/include/gpxe')

diff --git a/src/include/gpxe/retry.h b/src/include/gpxe/retry.h
index 7291db234..57be432e2 100644
--- a/src/include/gpxe/retry.h
+++ b/src/include/gpxe/retry.h
@@ -15,7 +15,10 @@ struct retry_timer {
 	struct list_head list;
 	/** Timeout value (in ticks) */
 	unsigned long timeout;
-	/** Start time (in ticks) */
+	/** Start time (in ticks)
+	 *
+	 * A start time of zero indicates a stopped timer.
+	 */
 	unsigned long start;
 	/** Retry count */
 	unsigned int count;
-- 
cgit v1.2.3-55-g7522