[PATCH 5.13 217/351] um: fix error return code in slip_open()

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From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Acked-By: anton.ivanov@xxxxxxxxxxxxxxxxxx
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 482a19c5105c..7334019c9e60 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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