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Subject[PATCH 4.9 226/245] um: fix error return code in slip_open()
Date
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(-)

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;
--
2.30.2


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