From: Memphis <memphis@machzwo.de>
Date: Wed, 13 May 2015 18:35:29 +0000 (+0200)
Subject: - use atomic_dec_u64 for decrementing size counters - this prevents an unsigned wrap... 
X-Git-Tag: v4.1~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c74d73cfe5fdab083eb6b474fcdcc9f9fda5351c;p=thirdparty%2Ftvheadend.git

- use atomic_dec_u64 for decrementing size counters - this prevents an unsigned wrap because of casting negative parameter to uint64_t - fixes #2712
---

diff --git a/src/timeshift/timeshift_filemgr.c b/src/timeshift/timeshift_filemgr.c
index 04c6ea0a7..de4e21f45 100644
--- a/src/timeshift/timeshift_filemgr.c
+++ b/src/timeshift/timeshift_filemgr.c
@@ -180,9 +180,9 @@ void timeshift_filemgr_remove
     tvhdebug("timeshift", "ts %d RAM segment remove time %li", ts->id, (long)tsf->time);
 #endif
   TAILQ_REMOVE(&ts->files, tsf, link);
-  atomic_add_u64(&timeshift_total_size, -tsf->size);
+  atomic_dec_u64(&timeshift_total_size, tsf->size);
   if (tsf->ram)
-    atomic_add_u64(&timeshift_total_ram_size, -tsf->size);
+    atomic_dec_u64(&timeshift_total_ram_size, tsf->size);
   timeshift_reaper_remove(tsf);
 }