From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Tue, 21 Apr 2015 13:35:45 +0000 (+0100)
Subject: signal: Don't use uninitalised sival_ptr
X-Git-Tag: xen-4.6.1~21
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=9b81761be03ac017bdb1a212e4b59de545853d2f;p=qemu-xen-unstable.git

signal: Don't use uninitalised sival_ptr

In 64bit builds, setting sival_int to 0 doesn't clear the upper half of the
sival_ptr pointer.  Valgrind does not like this.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---

diff --git a/vl.c b/vl.c
index 67d9d86771..c864e7de75 100644
--- a/vl.c
+++ b/vl.c
@@ -1568,7 +1568,7 @@ static void rtc_stop_timer(struct qemu_alarm_timer *t)
 
 static int dynticks_start_timer(struct qemu_alarm_timer *t)
 {
-    struct sigevent ev;
+    struct sigevent ev = { { 0 } };
     timer_t host_timer;
     struct sigaction act;
 
@@ -1578,7 +1578,6 @@ static int dynticks_start_timer(struct qemu_alarm_timer *t)
 
     sigaction(SIGALRM, &act, NULL);
 
-    ev.sigev_value.sival_int = 0;
     ev.sigev_notify = SIGEV_SIGNAL;
     ev.sigev_signo = SIGALRM;