chao an a8de85de0b sched/signal: add sanity check for siginfo
add sanity check for siginfo to ensure whether there is really a
consumer waiting for the signal, since the task state will not be
changed appropriately if in cancel/killed case

Test Case:
https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/sigpause/1-1.c#L63

Signed-off-by: chao an <anchao@lixiang.com>
2024-03-26 20:55:04 +08:00
..
2023-12-26 19:23:13 -08:00