disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/media/pci/bt8xx/bt878.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card
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  *
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@@ -7,32 +8,14 @@
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  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@metzlerbros.de)
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  *                        & Marcus Metzler (mocm@metzlerbros.de)
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  * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version 2
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- * of the License, or (at your option) any later version.
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- *
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-
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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-
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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- * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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- *
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  */
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 #include <linux/module.h>
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 #include <linux/kernel.h>
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 #include <linux/pci.h>
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+#include <linux/pgtable.h>
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 #include <asm/io.h>
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 #include <linux/ioport.h>
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-#include <asm/pgtable.h>
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 #include <asm/page.h>
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 #include <linux/types.h>
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 #include <linux/interrupt.h>
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@@ -317,7 +300,8 @@
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 		}
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 		if (astat & BT878_ARISCI) {
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 			bt->finished_block = (stat & BT878_ARISCS) >> 28;
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-			tasklet_schedule(&bt->tasklet);
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+			if (bt->tasklet.callback)
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+				tasklet_schedule(&bt->tasklet);
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 			break;
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 		}
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 		count++;