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 a561705..be198cc 100644 (file)
--- 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);