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signal: make get_signal() return bool

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make get_signal() already behaves like a boolean function.  Let's actually
declare it as such too.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Christian Brauner <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Eric W. Biederman <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Morris <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephen Smalley <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christian Brauner 2018-08-21 22:00:54 -07:00 • committed by Linus Torvalds
commit 20ab7218d2
2 changed files with 3 additions and 3 deletions
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4
kernel/signal.c
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@ -2287,7 +2287,7 @@ static int ptrace_signal(int signr, siginfo_t *info)
return signr;
}
int get_signal(struct ksignal *ksig)
bool get_signal(struct ksignal *ksig)
{
struct sighand_struct *sighand = current->sighand;
struct signal_struct *signal = current->signal;
@ -2297,7 +2297,7 @@ int get_signal(struct ksignal *ksig)
task_work_run();
if (unlikely(uprobe_deny_signal()))
return 0;
return false;
/*
* Do this once, we can't return to user-mode if freezing() == T.