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 16:05:36 +0100 |
| commit | 0330faf4b982df13c93979e906b5e6ac04f55ce6 (patch) | |
| tree | 3b1e19a9e7ea3d6505e48288113d5cb2c2d3295e /arch | |
| parent | 20a0f450afa0224f2cf376f18b31cf295fb52ef2 (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')
| -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 908579f2b0ab..258e741f61a8 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -694,6 +694,11 @@ 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) |