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tty: vt, consw->con_set_palette cleanup

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* allow NULL consw->con_set_palette (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_set_palette is never checked => make the
  function void
* document consw->con_set_palette 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>
This commit is contained in:
Jiri Slaby
2016-06-23 13:34:27 +02:00
committed by Greg Kroah-Hartman
parent 97293de977
commit 709280da62
9 changed files with 15 additions and 38 deletions
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2
drivers/tty/vt/vt.c
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@@ -3978,7 +3978,7 @@ static void set_palette(struct vc_data *vc)
{
WARN_CONSOLE_UNLOCKED();
if (vc->vc_mode != KD_GRAPHICS)
if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_set_palette)
vc->vc_sw->con_set_palette(vc, color_table);
}