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[Qemu-trivial] [PULL 02/23] iohandler.c: Properly initialize sigaction s

From: Michael Tokarev
Subject: [Qemu-trivial] [PULL 02/23] iohandler.c: Properly initialize sigaction struct
Date: Mon, 26 May 2014 11:19:50 +0400

From: Peter Maydell <address@hidden>

The code in qemu_init_child_watch() wasn't clearing the 'struct
sigaction' before passing it to sigaction(); this meant that we
would block a random set of signals while executing the SIGCHLD
handler. Initialize properly by using memset() on the struct,
as we do in similar cases elsewhere.

Signed-off-by: Peter Maydell <address@hidden>
Signed-off-by: Michael Tokarev <address@hidden>
 iohandler.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/iohandler.c b/iohandler.c
index ae2ef8f..cca614f 100644
--- a/iohandler.c
+++ b/iohandler.c
@@ -191,6 +191,7 @@ static void qemu_init_child_watch(void)
     struct sigaction act;
     sigchld_bh = qemu_bh_new(sigchld_bh_handler, NULL);
+    memset(&act, 0, sizeof(act));
     act.sa_handler = sigchld_handler;
     act.sa_flags = SA_NOCLDSTOP;
     sigaction(SIGCHLD, &act, NULL);

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