diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2016-06-23 13:34:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-25 09:04:48 -0700 |
| commit | 97293de977365fe672daec2523e66ef457104921 (patch) | |
| tree | 14c8bbf5c4c87a1b06afa1f4c800a15b4c92b135 /drivers/video/console/fbcon.c | |
| parent | 3cc5be7739295ce00f5658c6f45c5c453412f708 (diff) | |
tty: vt, consw->con_scrolldelta cleanup
* allow NULL consw->con_scrolldelta (some consoles define an empty
hook)
* => remove empty hooks now
* return value of consw->con_scrolldelta is never checked => make the
function void
* document consw->con_scrolldelta a bit
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video/console/fbcon.c')
| -rw-r--r-- | drivers/video/console/fbcon.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index afd3301ac40c..eadc7bf62eb3 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -171,7 +171,6 @@ static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, static int fbcon_switch(struct vc_data *vc); static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table); -static int fbcon_scrolldelta(struct vc_data *vc, int lines); /* * Internal routines @@ -2765,7 +2764,7 @@ static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) } } -static int fbcon_scrolldelta(struct vc_data *vc, int lines) +static void fbcon_scrolldelta(struct vc_data *vc, int lines) { struct fb_info *info = registered_fb[con2fb_map[fg_console]]; struct fbcon_ops *ops = info->fbcon_par; @@ -2774,9 +2773,9 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) if (softback_top) { if (vc->vc_num != fg_console) - return 0; + return; if (vc->vc_mode != KD_TEXT || !lines) - return 0; + return; if (logo_shown >= 0) { struct vc_data *conp2 = vc_cons[logo_shown].d; @@ -2809,11 +2808,11 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); fbcon_redraw_softback(vc, disp, lines); fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); - return 0; + return; } if (!scrollback_phys_max) - return -ENOSYS; + return; scrollback_old = scrollback_current; scrollback_current -= lines; @@ -2822,10 +2821,10 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) else if (scrollback_current > scrollback_max) scrollback_current = scrollback_max; if (scrollback_current == scrollback_old) - return 0; + return; if (fbcon_is_inactive(vc, info)) - return 0; + return; fbcon_cursor(vc, CM_ERASE); @@ -2852,7 +2851,6 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) if (!scrollback_current) fbcon_cursor(vc, CM_DRAW); - return 0; } static int fbcon_set_origin(struct vc_data *vc) |