add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
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@@ -220,7 +220,7 @@
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 	/* allocate our function and group mapping index buffers */
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 	f = p->func = devm_kcalloc(p->dev,
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 				   p->func_count,
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-				   sizeof(struct rt2880_pmx_func),
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+				   sizeof(*p->func),
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 				   GFP_KERNEL);
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 	gpio_func.groups = devm_kcalloc(p->dev, p->group_count, sizeof(int),
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 					GFP_KERNEL);
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@@ -267,6 +267,8 @@
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 						p->func[i]->pin_count,
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 						sizeof(int),
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 						GFP_KERNEL);
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+		if (!p->func[i]->pins)
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+			return -ENOMEM;
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 		for (j = 0; j < p->func[i]->pin_count; j++)
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 			p->func[i]->pins[j] = p->func[i]->pin_first + j;
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@@ -350,7 +352,6 @@
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 	for_each_compatible_node(np, NULL, "ralink,rt2880-gpio") {
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 		const __be32 *ngpio, *gpiobase;
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 		struct pinctrl_gpio_range *range;
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-		char *name;
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 		if (!of_device_is_available(np))
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 			continue;
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@@ -359,12 +360,16 @@
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 		gpiobase = of_get_property(np, "ralink,gpio-base", NULL);
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 		if (!ngpio || !gpiobase) {
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 			dev_err(&pdev->dev, "failed to load chip info\n");
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+			of_node_put(np);
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 			return -EINVAL;
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 		}
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-		range = devm_kzalloc(p->dev, sizeof(*range) + 4, GFP_KERNEL);
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-		range->name = name = (char *) &range[1];
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-		sprintf(name, "pio");
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+		range = devm_kzalloc(p->dev, sizeof(*range), GFP_KERNEL);
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+		if (!range) {
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+			of_node_put(np);
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+			return -ENOMEM;
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+		}
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+		range->name = "pio";
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 		range->npins = __be32_to_cpu(*ngpio);
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 		range->base = __be32_to_cpu(*gpiobase);
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 		range->pin_base = range->base;