tty: replace BKL with a new tty_lock

As a preparation for replacing the big kernel lock
in the TTY layer, wrap all the callers in new
macros tty_lock, tty_lock_nested and tty_unlock.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 182dd6f8aadd..71970057c118 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1108,7 +1108,7 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
                 charmap += 4 * cmapsz;
 #endif
 
-        unlock_kernel();
+        tty_unlock();
         spin_lock_irq(&vga_lock);
         /* First, the Sequencer */
         vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
@@ -1192,7 +1192,7 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
                 vga_wattr(state->vgabase, VGA_AR_ENABLE_DISPLAY, 0);    
         }
         spin_unlock_irq(&vga_lock);
-        lock_kernel();
+        tty_lock();
         return 0;
 }