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| author | Christian Brauner <christian@brauner.io> | 2018-08-21 22:00:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:51 -0700 |
| commit | 67a48a24478841525ba73ec6d64caaf079cf3b7c (patch) | |
| tree | 694e4a4d3046fd61215ebd59d97ccc15fe8bf1ab /kernel/signal.c | |
| parent | 09ae854edb2d275d98a874c21c24c58cee4df14e (diff) | |
| download | lwn-67a48a24478841525ba73ec6d64caaf079cf3b7c.tar.gz lwn-67a48a24478841525ba73ec6d64caaf079cf3b7c.zip | |
signal: make unhandled_signal() return bool
unhandled_signal() already behaves like a boolean function. Let's
actually declare it as such too. All callers treat it as such too.
Link: http://lkml.kernel.org/r/20180602103653.18181-13-christian@brauner.io
Signed-off-by: Christian Brauner <christian@brauner.io>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Morris <james.morris@microsoft.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 7eec2dba597e..c10c09fc4ec3 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -505,13 +505,15 @@ flush_signal_handlers(struct task_struct *t, int force_default) } } -int unhandled_signal(struct task_struct *tsk, int sig) +bool unhandled_signal(struct task_struct *tsk, int sig) { void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler; if (is_global_init(tsk)) - return 1; + return true; + if (handler != SIG_IGN && handler != SIG_DFL) - return 0; + return false; + /* if ptraced, let the tracer determine */ return !tsk->ptrace; } |