Keep valgrind happy when calling timer_create

Fill all of the sigevent structure with zeroes before individual fields are
set. Although not strictly necessary, this keeps tools like valgrind from
complaining about passing uninitialized data, which is a good thing.

MERGE TO STABLE

diff --git a/rts/posix/Itimer.c b/rts/posix/Itimer.c
index 1fcfa16..a60f8f1 100644 (file)
--- a/rts/posix/Itimer.c
+++ b/rts/posix/Itimer.c
@@ -42,6 +42,8 @@
 # include <signal.h>
 #endif
 
+#include <string.h>
+
 /* Major bogosity:
  * 
  * In the threaded RTS, we can't set the virtual timer because the
@@ -143,6 +145,9 @@ initTicker (nat ms, TickProc handle_tick)
     {
         struct sigevent ev;
 
+       // Keep programs like valgrind happy
+       memset(&ev, 0, sizeof(ev));
+
         ev.sigev_notify = SIGEV_SIGNAL;
         ev.sigev_signo  = ITIMER_SIGNAL;