vt: synchronize_rcu() under spinlock is not nice...

[uclinux-h8/linux.git] / drivers / tty / vt / vc_screen.c

diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index e4ca345..d7799de 100644 (file)
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -93,7 +93,7 @@ vcs_poll_data_free(struct vcs_poll_data *poll)
 static struct vcs_poll_data *
 vcs_poll_data_get(struct file *file)
 {
-       struct vcs_poll_data *poll = file->private_data;
+       struct vcs_poll_data *poll = file->private_data, *kill = NULL;
 
        if (poll)
                return poll;
@@ -122,10 +122,12 @@ vcs_poll_data_get(struct file *file)
                file->private_data = poll;
        } else {
                /* someone else raced ahead of us */
-               vcs_poll_data_free(poll);
+               kill = poll;
                poll = file->private_data;
        }
        spin_unlock(&file->f_lock);
+       if (kill)
+               vcs_poll_data_free(kill);
 
        return poll;
 }