From: Bo Chen <chenbo@pdx.edu>
Date: Mon, 21 May 2018 21:44:49 +0000 (-0700)
Subject: pcnet32: add an error handling path in pcnet32_probe_pci()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d7db318651d5430eb79eceef1e6aa9b084ae78e6;p=openwrt%2Fstaging%2Fblogic.git

pcnet32: add an error handling path in pcnet32_probe_pci()

Make sure to invoke pci_disable_device() when errors occur in
pcnet32_probe_pci().

Signed-off-by: Bo Chen <chenbo@pdx.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index a561705f232c..be198cc0b10c 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1552,22 +1552,26 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!ioaddr) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("card has no PCI IO resources, aborting\n");
-		return -ENODEV;
+		err = -ENODEV;
+		goto err_disable_dev;
 	}
 
 	err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK);
 	if (err) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
-		return err;
+		goto err_disable_dev;
 	}
 	if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("io address range already allocated\n");
-		return -EBUSY;
+		err = -EBUSY;
+		goto err_disable_dev;
 	}
 
 	err = pcnet32_probe1(ioaddr, 1, pdev);
+
+err_disable_dev:
 	if (err < 0)
 		pci_disable_device(pdev);