Merge of fix for bug#12329909 from mysql-5.1 -> mysql-5.5.

cmd-line-utils/libedit/vi.c

@@ -1012,8 +1012,10 @@ vi_histedit(EditLine *el, int c __attribute__((__unused__)))
 	if (fd < 0)
 		return CC_ERROR;
 	cp = el->el_line.buffer;
-	write(fd, cp, el->el_line.lastchar - cp +0u);
-	write(fd, "\n", 1);
+	if (write(fd, cp, el->el_line.lastchar - cp +0u) == -1)
+          goto error;
+	if (write(fd, "\n", 1) == -1)
+          goto error;
 	pid = fork();
 	switch (pid) {
 	case -1:
@@ -1041,6 +1043,12 @@ vi_histedit(EditLine *el, int c __attribute__((__unused__)))
 	unlink(tempfile);
 	/* return CC_REFRESH; */
 	return ed_newline(el, 0);
+
+/* XXXMYSQL: Avoid compiler warnings. */
+error:
+        close(fd);
+        unlink(tempfile);
+        return CC_ERROR;
 }
 
 /* vi_history_word():