vt: remove lines parameter from scrollback

It is always called with 0, so remove the parameter and pass the
default down to scrolldelta without checking.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 3 insertions, 5 deletions

diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index f973bfce5d08..cd08c103eb47 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -579,7 +579,7 @@ static void fn_scroll_forw(struct vc_data *vc)
 
 static void fn_scroll_back(struct vc_data *vc)
 {
-        scrollback(vc, 0);
+        scrollback(vc);
 }
 
 static void fn_show_mem(struct vc_data *vc)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index dc125322f48f..abc79ae19079 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1102,11 +1102,9 @@ static void gotoxay(struct vc_data *vc, int new_x, int new_y)
         gotoxy(vc, new_x, vc->vc_decom ? (vc->vc_top + new_y) : new_y);
 }
 
-void scrollback(struct vc_data *vc, int lines)
+void scrollback(struct vc_data *vc)
 {
-        if (!lines)
-                lines = vc->vc_rows / 2;
-        scrolldelta(-lines);
+        scrolldelta(-(vc->vc_rows / 2));
 }
 
 void scrollfront(struct vc_data *vc, int lines)