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um: fix error return code in slip_open()

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[ 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: a3c77c67a4 ("[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>
This commit is contained in:
Zhen Lei 2021-05-08 11:13:54 +08:00 committed by Greg Kroah-Hartman
parent 0bfb6d4949
commit 9bb3f31b25
1 changed files with 2 additions and 1 deletions
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3
arch/um/drivers/slip_user.c
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@ -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;