diff options
| author | Richard Weinberger <richard@nod.at> | 2018-06-15 16:42:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 16:09:38 +0100 |
| commit | 11832f3cfbdad1b6120b5411ae2551b3acd0f37b (patch) | |
| tree | b5e309afd37b8c99a92a3b29fd6122f55cfae22a /arch/um | |
| parent | 8b275768a13bdf0d949b78c78db8065065a3a8d9 (diff) | |
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>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 23025d645160..0a99d4515065 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -578,6 +578,11 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf) fatal_sigsegv(); } longjmp(*switch_buf, 1); + + /* unreachable */ + printk(UM_KERN_ERR "impossible long jump!"); + fatal_sigsegv(); + return 0; } void initial_thread_cb_skas(void (*proc)(void *), void *arg) |