signal: check sig before setting info in kill_pid_usb_asyncio

[platform/kernel/linux-rpi.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 2b9295f..595a36a 100644 (file)
--- 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) {