add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/media/dvb-frontends/si21xx.c
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@@ -1,12 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /* DVB compliant Linux driver for the DVB-S si2109/2110 demodulator
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 *
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 * Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
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-*
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-*	This program is free software; you can redistribute it and/or modify
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-*	it under the terms of the GNU General Public License as published by
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-*	the Free Software Foundation; either version 2 of the License, or
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-*	(at your option) any later version.
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-*
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 */
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 #include <linux/init.h>
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 #include <linux/kernel.h>
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@@ -943,7 +938,7 @@
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 	kfree(state);
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 	return NULL;
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 }
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-EXPORT_SYMBOL(si21xx_attach);
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+EXPORT_SYMBOL_GPL(si21xx_attach);
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 module_param(debug, int, 0644);
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 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");