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net: sxgbe: Fix NULL dereferece when using DT

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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 <[email protected]>
Signed-off-by: Byungho An <[email protected]>
Signed-off-by: Kukjin Kim <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Girish K.S 2015-01-15 10:41:47 +09:00 • committed by David S. Miller
commit 1c1832c7cd
1 changed files with 4 additions and 4 deletions
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8
drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c
View file

@ -108,10 +108,6 @@ static int sxgbe_platform_probe(struct platform_device *pdev)
}
}
/* Get MAC address if available (DT) */
if (mac)
ether_addr_copy(priv->dev->dev_addr, mac);
priv = sxgbe_drv_probe(&(pdev->dev), plat_dat, addr);
if (!priv) {
pr_err("%s: main driver probe failed\n", __func__);
@ -125,6 +121,10 @@ static int sxgbe_platform_probe(struct platform_device *pdev)
goto err_drv_remove;
}
/* Get MAC address if available (DT) */
if (mac)
ether_addr_copy(priv->dev->dev_addr, mac);
/* Get the TX/RX IRQ numbers */
for (i = 0, chan = 1; i < SXGBE_TX_QUEUES; i++) {
priv->txq[i]->irq_no = irq_of_parse_and_map(node, chan++);