From: Zhen Lei thunder.leizhen@huawei.com
stable inclusion from stable-5.10.52 commit 9bb3f31b25b2b5f157cd25aa6a259908d339a8c0 bugzilla: 175542 https://gitee.com/openeuler/kernel/issues/I4DTKU
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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: 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 Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- 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;