kernel - Fix missing release of tty_token

* Fix one missing release and one misordered release.  These were
  causing the low level SMP AP boot to enter with 2 mplock counts
  instead of 1.

diff --git a/sys/dev/video/fb/fb.c b/sys/dev/video/fb/fb.c
index f7b6506..7e91883 100644 (file)
--- a/sys/dev/video/fb/fb.c
+++ b/sys/dev/video/fb/fb.c
@@ -172,6 +172,7 @@ vid_register(video_adapter_t *adp)
                if (strcmp(p->name, adp->va_name) == 0) {
                        adapter[index] = adp;
                        vidsw[index] = p->vidsw;
+                       lwkt_reltoken(&tty_token);
                        return index;
                }
        }
@@ -542,9 +543,12 @@ int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd,
 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset,
              int prot)
 {
+       int error;
+
        lwkt_gettoken(&tty_token);
-       return (*vidsw[adp->va_index]->mmap)(adp, offset, prot);
+       error = (*vidsw[adp->va_index]->mmap)(adp, offset, prot);
        lwkt_reltoken(&tty_token);
+       return (error);
 }
 
 #endif /* FB_INSTALL_CDEV */