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path: root/drivers/char/vt_ioctl.c
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Diffstat (limited to 'drivers/char/vt_ioctl.c')
-rw-r--r--drivers/char/vt_ioctl.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index a53e382cc107..dc408af165ab 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -645,13 +645,16 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
645 */ 645 */
646 case KDSIGACCEPT: 646 case KDSIGACCEPT:
647 { 647 {
648 extern int spawnpid, spawnsig;
649 if (!perm || !capable(CAP_KILL)) 648 if (!perm || !capable(CAP_KILL))
650 return -EPERM; 649 return -EPERM;
651 if (!valid_signal(arg) || arg < 1 || arg == SIGKILL) 650 if (!valid_signal(arg) || arg < 1 || arg == SIGKILL)
652 return -EINVAL; 651 return -EINVAL;
653 spawnpid = current->pid; 652
654 spawnsig = arg; 653 spin_lock_irq(&vt_spawn_con.lock);
654 put_pid(vt_spawn_con.pid);
655 vt_spawn_con.pid = get_pid(task_pid(current));
656 vt_spawn_con.sig = arg;
657 spin_unlock_irq(&vt_spawn_con.lock);
655 return 0; 658 return 0;
656 } 659 }
657 660