Re: [PATCH net-next v2 1/2] of: net: pass the dst buffer to of_get_mac_address()

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Hi Michael,

url:    https://github.com/0day-ci/linux/commits/Michael-Walle/of-net-support-non-platform-devices-in-of_get_mac_address/20210406-234030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git cc0626c2aaed8e475efdd85fa374b497a7192e35
config: x86_64-randconfig-m001-20210406 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

smatch warnings:
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:2069 axienet_probe() warn: passing a valid pointer to 'PTR_ERR'

vim +/PTR_ERR +2069 drivers/net/ethernet/xilinx/xilinx_axienet_main.c

522856cefaf09d Robert Hancock      2019-06-06  2060  	/* Check for Ethernet core IRQ (optional) */
522856cefaf09d Robert Hancock      2019-06-06  2061  	if (lp->eth_irq <= 0)
522856cefaf09d Robert Hancock      2019-06-06  2062  		dev_info(&pdev->dev, "Ethernet core IRQ not defined\n");
522856cefaf09d Robert Hancock      2019-06-06  2063  
8a3b7a252dca9f Daniel Borkmann     2012-01-19  2064  	/* Retrieve the MAC address */
411b125c6ace1f Michael Walle       2021-04-06  2065  	ret = of_get_mac_address(pdev->dev.of_node, mac_addr);
411b125c6ace1f Michael Walle       2021-04-06  2066  	if (!ret) {
411b125c6ace1f Michael Walle       2021-04-06  2067  		axienet_set_mac_address(ndev, mac_addr);
411b125c6ace1f Michael Walle       2021-04-06  2068  	} else {
d05a9ed5c3a773 Robert Hancock      2019-06-06 @2069  		dev_warn(&pdev->dev, "could not find MAC address property: %ld\n",
d05a9ed5c3a773 Robert Hancock      2019-06-06  2070  			 PTR_ERR(mac_addr));
                                                                         ^^^^^^^^^^^^^^^^^
This should print "ret".

411b125c6ace1f Michael Walle       2021-04-06  2071  		axienet_set_mac_address(ndev, NULL);
8a3b7a252dca9f Daniel Borkmann     2012-01-19  2072  	}
8a3b7a252dca9f Daniel Borkmann     2012-01-19  2073  
8a3b7a252dca9f Daniel Borkmann     2012-01-19  2074  	lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD;
8a3b7a252dca9f Daniel Borkmann     2012-01-19  2075  	lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD;

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip


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