X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/ab076e024dead93707ab637800ddcdad0a289e0a..3976feca5001403b8160e6f946360a33adefb077:/sshrand.c

diff --git a/sshrand.c b/sshrand.c
index 26fcfe52..b728fd95 100644
--- a/sshrand.c
+++ b/sshrand.c
@@ -4,6 +4,7 @@
 
 #include "putty.h"
 #include "ssh.h"
+#include <assert.h>
 
 /* Collect environmental noise every 5 minutes */
 #define NOISE_REGULAR_INTERVAL (5*60*TICKSPERSEC)
@@ -225,6 +226,10 @@ void random_ref(void)
 void random_unref(void)
 {
     random_active--;
+    assert(random_active >= 0);
+    if (random_active) return;
+
+    expire_timer_context(&pool);
 }
 
 int random_byte(void)