[PATCH trivial] pty: set tty on error

[Serge E. Hallyn]

we always return tty expecting it to hold the error code.

Signed-off-by: Serge E. Hallyn <serue at us.ibm.com>
---
 drivers/char/tty_io.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 1729b2f..ee95938 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -3033,8 +3033,12 @@ static struct tty_struct *do_restore_tty(struct ckpt_ctx *ctx)
 	 */
 	if (master) {
 		file = pty_open_by_index("/dev/ptmx", h->index);
-		if (IS_ERR(file))
+		if (IS_ERR(file)) {
+			ckpt_write_err(ctx, "TE", "Error %d opening /dev/ptmx",
+				PTR_ERR(file));
+			tty = ERR_PTR(PTR_ERR(file));
 			goto out;
+		}
 
 		/*
 		 * Add file to objhash to ensure proper cleanup later
-- 
1.6.1