rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

 kernel/kernel/time/itimer.c
..
..
@@ -211,6 +211,7 @@
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 		/* We are sharing ->siglock with it_real_fn() */
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 		if (hrtimer_try_to_cancel(timer) < 0) {
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 			spin_unlock_irq(&tsk->sighand->siglock);
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+			hrtimer_grab_expiry_lock(timer);
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 			goto again;
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 		}
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 		expires = timeval_to_ktime(value->it_value);