From e33590f37d060cebd7ef5d7c1f929926fbe21e29 Mon Sep 17 00:00:00 2001
From: Jan Berdajs <mrbrdo@gmail.com>
Date: Mon, 7 Jul 2014 04:20:41 +0200
Subject: [PATCH] Thread was never joined because thr_info_cancel sets pth to
 0. Should improve mining thread hard reset.

---
 sgminer.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sgminer.c b/sgminer.c
index 1c670b7d..15008c37 100644
--- a/sgminer.c
+++ b/sgminer.c
@@ -3322,11 +3322,11 @@ static void kill_mining(void)
   /* Kill the mining threads*/
   rd_lock(&mining_thr_lock);
   for (i = 0; i < mining_threads; i++) {
-    pthread_t *pth = NULL;
+    pthread_t *pth = (pthread_t *) calloc(1, sizeof(pthread_t));
 
     thr = mining_thr[i];
     if (thr && PTH(thr) != 0L)
-      pth = &thr->pth;
+      *pth = thr->pth;
     thr_info_cancel(thr);
     forcelog(LOG_DEBUG, "Waiting for thread %d to finish...", thr->id);
 #ifndef WIN32
@@ -3336,6 +3336,7 @@ static void kill_mining(void)
     if (pth && pth->p)
       pthread_join(*pth, NULL);
 #endif
+    free(pth);
   }
   rd_unlock(&mining_thr_lock);
 }