process.c: child process error state

* process.c (rb_fork_err): error state in the child process is prior
  to exceptions in proc_syswait().


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35960 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,4 +1,7 @@
-Fri Jun  8 11:26:37 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun  8 12:04:39 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (rb_fork_err): error state in the child process is prior
+	  to exceptions in proc_syswait().
 
 	* process.c (rb_fork_err): determine status on errors.
 

process.c

@@ -2874,8 +2874,8 @@ rb_fork_err(int *status, int (*chfunc)(void*, char *, size_t), void *charg, VALU
 	    rb_io_close(io);
 	if (state || size) {
 	    if (status) {
-		*status = state;
 		rb_protect(proc_syswait, (VALUE)pid, status);
+		if (state) *status = state;
 	    }
 	    else {
 		rb_syswait(pid);