From: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx> [ 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@xxxxxxxxxx> Acked-by: Christian Brauner <christian.brauner@xxxxxxxxxx> Link: https://lore.kernel.org/r/f525fd08-1cf7-fb09-d20c-4359145eb940@xxxxxxxxxx Signed-off-by: Christian Brauner <christian.brauner@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- kernel/signal.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index e58a6c619824f..3f94894d1253d 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) { -- 2.20.1
