From: Zhiqiang Liu liuzhiqiang26@huawei.com
[ Upstream commit eaec2b0bd30690575c581eebffae64bfb7f684ac ]
In kill_pid_usb_asyncio, if signal is not valid, we do not need to set info struct.
Signed-off-by: Zhiqiang Liu liuzhiqiang26@huawei.com Acked-by: Christian Brauner christian.brauner@ubuntu.com Link: https://lore.kernel.org/r/f525fd08-1cf7-fb09-d20c-4359145eb940@huawei.com Signed-off-by: Christian Brauner christian.brauner@ubuntu.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/signal.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c index 7938c60e11dd2..9abf962bbde47 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1510,15 +1510,15 @@ int kill_pid_usb_asyncio(int sig, int errno, sigval_t addr, unsigned long flags; int ret = -EINVAL;
+ if (!valid_signal(sig)) + return ret; + clear_siginfo(&info); info.si_signo = sig; info.si_errno = errno; info.si_code = SI_ASYNCIO; *((sigval_t *)&info.si_pid) = addr;
- if (!valid_signal(sig)) - return ret; - rcu_read_lock(); p = pid_task(pid, PIDTYPE_PID); if (!p) {