change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/net/can/sun4i_can.c
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@@ -525,11 +525,6 @@
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 	rxerr = (errc >> 16) & 0xFF;
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 	txerr = errc & 0xFF;
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-	if (skb) {
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-		cf->data[6] = txerr;
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-		cf->data[7] = rxerr;
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-	}
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-
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 	if (isrc & SUN4I_INT_DATA_OR) {
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 		/* data overrun interrupt */
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 		netdev_dbg(dev, "data overrun interrupt\n");
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@@ -559,6 +554,10 @@
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 			state = CAN_STATE_ERROR_WARNING;
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 		else
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 			state = CAN_STATE_ERROR_ACTIVE;
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+	}
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+	if (skb && state != CAN_STATE_BUS_OFF) {
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+		cf->data[6] = txerr;
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+		cf->data[7] = rxerr;
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 	}
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 	if (isrc & SUN4I_INT_BUS_ERR) {
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 		/* bus error interrupt */
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@@ -604,7 +603,6 @@
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 		netdev_dbg(dev, "arbitration lost interrupt\n");
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 		alc = readl(priv->base + SUN4I_REG_STA_ADDR);
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 		priv->can.can_stats.arbitration_lost++;
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-		stats->tx_errors++;
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 		if (likely(skb)) {
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 			cf->can_id |= CAN_ERR_LOSTARB;
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 			cf->data[0] = (alc >> 8) & 0x1f;
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@@ -771,7 +769,6 @@
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 static int sun4ican_probe(struct platform_device *pdev)
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 {
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 	struct device_node *np = pdev->dev.of_node;
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-	struct resource *mem;
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 	struct clk *clk;
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 	void __iomem *addr;
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 	int err, irq;
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@@ -787,15 +784,13 @@
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 	irq = platform_get_irq(pdev, 0);
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 	if (irq < 0) {
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-		dev_err(&pdev->dev, "could not get a valid irq\n");
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 		err = -ENODEV;
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 		goto exit;
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 	}
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-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	addr = devm_ioremap_resource(&pdev->dev, mem);
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+	addr = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(addr)) {
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-		err = -EBUSY;
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+		err = PTR_ERR(addr);
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 		goto exit;
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 	}
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