add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/drivers/media/usb/dvb-usb-v2/ce6230.c
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@@ -1,18 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Intel CE6230 DVB USB driver
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  *
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  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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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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- *    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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 #include "ce6230.h"
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@@ -111,6 +101,10 @@
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 		if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
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 			if (msg[i].addr ==
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 				ce6230_zl10353_config.demod_address) {
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+				if (msg[i].len < 1) {
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+					i = -EOPNOTSUPP;
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+					break;
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+				}
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 				req.cmd = DEMOD_READ;
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 				req.value = msg[i].addr >> 1;
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 				req.index = msg[i].buf[0];
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@@ -127,6 +121,10 @@
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 		} else {
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 			if (msg[i].addr ==
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 				ce6230_zl10353_config.demod_address) {
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+				if (msg[i].len < 1) {
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+					i = -EOPNOTSUPP;
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+					break;
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+				}
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 				req.cmd = DEMOD_WRITE;
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 				req.value = msg[i].addr >> 1;
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 				req.index = msg[i].buf[0];