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eth: sp7021: fix use after free bug in spl2sw_nvmem_get_mac_address

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This frees "mac" and tries to display its address as part of the error
message on the next line.  Swap the order.

Fixes: fd3040b9394c ("net: ethernet: Add driver for Sunplus SP7021")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zheng Wang 2022-10-01 01:57:25 +08:00 committed by David S. Miller
parent b43f9acbb8
commit 12aece8b01
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/sunplus/spl2sw_driver.c
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@ -248,8 +248,8 @@ static int spl2sw_nvmem_get_mac_address(struct device *dev, struct device_node *
/* Check if mac address is valid */
if (!is_valid_ether_addr(mac)) {
kfree(mac);
dev_info(dev, "Invalid mac address in nvmem (%pM)!\n", mac);
kfree(mac);
return -EINVAL;
}