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net: sxgbe: Fix NULL dereferece when using DT
When the MAC address is provided in the device tree file, the condition is true and kernel crashes due to NULL dereference. Signed-off-by: Girish K.S <ks.giri@samsung.com> Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -108,10 +108,6 @@ static int sxgbe_platform_probe(struct platform_device *pdev)
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}
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}
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/* Get MAC address if available (DT) */
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if (mac)
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ether_addr_copy(priv->dev->dev_addr, mac);
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priv = sxgbe_drv_probe(&(pdev->dev), plat_dat, addr);
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if (!priv) {
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pr_err("%s: main driver probe failed\n", __func__);
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@ -125,6 +121,10 @@ static int sxgbe_platform_probe(struct platform_device *pdev)
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goto err_drv_remove;
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}
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/* Get MAC address if available (DT) */
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if (mac)
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ether_addr_copy(priv->dev->dev_addr, mac);
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/* Get the TX/RX IRQ numbers */
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for (i = 0, chan = 1; i < SXGBE_TX_QUEUES; i++) {
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priv->txq[i]->irq_no = irq_of_parse_and_map(node, chan++);
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