monitor.c: sanity check on waitpid return value

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

monitor.c: sanity check on waitpid return value
6b791669 · Serge Hallyn · e8b9ac8f · 6b791669
Commit 6b791669 authored Apr 24, 2013 by Serge Hallyn
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monitor.c src/lxc/monitor.c +2 -1

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--- a/src/lxc/monitor.c
+++ b/src/lxc/monitor.c
@@ -207,7 +207,8 @@ int lxc_monitord_spawn(const char *lxcpath)
 	}
 	if (pid1) {
-		waitpid(pid1, NULL, 0);
+		if (waitpid(pid1, NULL, 0) != pid1)
+			SYSERROR("unexpected waitpid return value on double-fork");
 		return 0;
 	}