um: Give start_idle_thread() a return code
authorRichard Weinberger <richard@nod.at>
Fri, 15 Jun 2018 14:42:56 +0000 (16:42 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 27 Nov 2018 15:10:46 +0000 (16:10 +0100)
commita134b05a43ae2327036e860fb10c74389b5bd971
tree199d5b4c5e698f1a9be3dd5adf79d1b3c4d6e236
parentf2e71fed903fa6441188f4ac8b0df6528711cae3
um: Give start_idle_thread() a return code

[ Upstream commit 7ff1e34bbdc15acab823b1ee4240e94623d50ee8 ]

Fixes:
arch/um/os-Linux/skas/process.c:613:1: warning: control reaches end of
non-void function [-Wreturn-type]

longjmp() never returns but gcc still warns that the end of the function
can be reached.
Add a return code and debug aid to detect this impossible case.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/um/os-Linux/skas/process.c