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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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net/fec: release mem_region requested in probe in error path and remove
Reported-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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@ -1377,8 +1377,10 @@ fec_probe(struct platform_device *pdev)
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/* Init network device */
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ndev = alloc_etherdev(sizeof(struct fec_enet_private));
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if (!ndev)
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return -ENOMEM;
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if (!ndev) {
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ret = -ENOMEM;
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goto failed_alloc_etherdev;
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}
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SET_NETDEV_DEV(ndev, &pdev->dev);
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@ -1456,6 +1458,8 @@ fec_probe(struct platform_device *pdev)
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iounmap((void __iomem *)ndev->base_addr);
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failed_ioremap:
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free_netdev(ndev);
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failed_alloc_etherdev:
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release_mem_region(r->start, resource_size(r));
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return ret;
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}
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@ -1465,6 +1469,7 @@ fec_drv_remove(struct platform_device *pdev)
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{
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struct net_device *ndev = platform_get_drvdata(pdev);
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struct fec_enet_private *fep = netdev_priv(ndev);
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struct resource *r;
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platform_set_drvdata(pdev, NULL);
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@ -1475,6 +1480,11 @@ fec_drv_remove(struct platform_device *pdev)
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iounmap((void __iomem *)ndev->base_addr);
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unregister_netdev(ndev);
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free_netdev(ndev);
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r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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BUG_ON(!r);
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release_mem_region(r->start, resource_size(r));
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return 0;
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}
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