diff mbox series

[4.14,290/315] um: fix error return code in slip_open()

Message ID 20210719144952.982242355@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman July 19, 2021, 2:52 p.m. UTC 
From: Zhen Lei <thunder.leizhen@huawei.com>


[ Upstream commit b77e81fbe5f5fb4ad9a61ec80f6d1e30b6da093a ]

Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.

Fixes: a3c77c67a443 ("[PATCH] uml: slirp and slip driver cleanups and fixes")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>

Acked-By: anton.ivanov@cambridgegreys.com

Signed-off-by: Richard Weinberger <richard@nod.at>

Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 arch/um/drivers/slip_user.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.30.2
diff mbox series

Patch

diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c
index 0d6b66c64a81..76d155631c5d 100644
--- a/arch/um/drivers/slip_user.c
+++ b/arch/um/drivers/slip_user.c
@@ -145,7 +145,8 @@  static int slip_open(void *data)
 	}
 	sfd = err;
 
-	if (set_up_tty(sfd))
+	err = set_up_tty(sfd);
+	if (err)
 		goto out_close2;
 
 	pri->slave = sfd;