[CRIU] [PATCH 3/7] test/zdtm: Move assignment after return value check

[Rikard Falkeborn]

If read() fails we can not use the return value as index. Move the use
of it to after the error check to avoid this.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn at gmail.com>
---
 test/zdtm/lib/ns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/zdtm/lib/ns.c b/test/zdtm/lib/ns.c
index 6b4a7539..3099f749 100644
--- a/test/zdtm/lib/ns.c
+++ b/test/zdtm/lib/ns.c
@@ -325,11 +325,11 @@ int ns_init(int argc, char **argv)
 		exit(1);
 	}
 	ret = read(fd, buf, sizeof(buf) - 1);
-	buf[ret] = '\0';
 	if (ret == -1) {
 		fprintf(stderr, "read() failed: %m\n");
 		exit(1);
 	}
+	buf[ret] = '\0';
 
 	pid = atoi(buf);
 	fprintf(stderr, "kill(%d, SIGTERM)\n", pid);
-- 
2.21.0