add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/power/supply/twl4030_charger.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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  * TWL4030/TPS65950 BCI (Battery Charger Interface) driver
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  *
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@@ -5,11 +6,6 @@
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  *
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  * based on twl4030_bci_battery.c by TI
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  * Copyright (C) 2008 Texas Instruments, Inc.
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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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 #include <linux/init.h>
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@@ -730,10 +726,10 @@
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 	for (i = 0; i < ARRAY_SIZE(modes); i++)
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 		if (mode == i)
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-			len += snprintf(buf+len, PAGE_SIZE-len,
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+			len += scnprintf(buf+len, PAGE_SIZE-len,
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 					"[%s] ", modes[i]);
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 		else
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-			len += snprintf(buf+len, PAGE_SIZE-len,
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+			len += scnprintf(buf+len, PAGE_SIZE-len,
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 					"%s ", modes[i]);
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 	buf[len-1] = '\n';
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 	return len;
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@@ -809,7 +805,9 @@
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 		is_charging = state & TWL4030_MSTATEC_AC;
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 	if (!is_charging) {
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 		u8 s;
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-		twl4030_bci_read(TWL4030_BCIMDEN, &s);
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+		ret = twl4030_bci_read(TWL4030_BCIMDEN, &s);
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+		if (ret < 0)
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+			return ret;
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 		if (psy->desc->type == POWER_SUPPLY_TYPE_USB)
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 			is_charging = s & 1;
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 		else