um: fix error return code in winch_tramp()
authorZhen Lei <thunder.leizhen@huawei.com>
Sat, 8 May 2021 03:22:39 +0000 (11:22 +0800)
committerRichard Weinberger <richard@nod.at>
Thu, 17 Jun 2021 20:10:56 +0000 (22:10 +0200)
commitccf1236ecac476d9d2704866d9a476c86e387971
tree536f7bbf74f1b2d2680f2e2a5e0e688800a33ae5
parentb77e81fbe5f5fb4ad9a61ec80f6d1e30b6da093a
um: fix error return code in winch_tramp()

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

Fixes: 89df6bfc0405 ("uml: DEBUG_SHIRQ 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>
arch/um/drivers/chan_user.c