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net: 3com: typhoon: typhoon_init_one: fix incorrect return values

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In a few cases the err-variable is not set to a negative error code if a
function call in typhoon_init_one() fails and thus 0 is returned
instead.
It may be better to set err to the appropriate negative error
code before returning.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188841

Reported-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Thomas Preisner <thomas.preisner+linux@fau.de>
Signed-off-by: Milan Stephan <milan.stephan+linux@fau.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Preisner 2016-12-30 03:37:53 +01:00 committed by David S. Miller
parent 7bb387c5ab
commit 107fded7bf
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/ethernet/3com/typhoon.c
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@ -2402,8 +2402,9 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
*(__be16 *)&dev->dev_addr[0] = htons(le16_to_cpu(xp_resp[0].parm1)); *(__be16 *)&dev->dev_addr[0] = htons(le16_to_cpu(xp_resp[0].parm1));
*(__be32 *)&dev->dev_addr[2] = htonl(le32_to_cpu(xp_resp[0].parm2)); *(__be32 *)&dev->dev_addr[2] = htonl(le32_to_cpu(xp_resp[0].parm2));
if(!is_valid_ether_addr(dev->dev_addr)) { if (!is_valid_ether_addr(dev->dev_addr)) {
err_msg = "Could not obtain valid ethernet address, aborting"; err_msg = "Could not obtain valid ethernet address, aborting";
err = -EIO;
goto error_out_reset; goto error_out_reset;
} }
@ -2411,7 +2412,8 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
* later when we print out the version reported. * later when we print out the version reported.
*/ */
INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS); INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS);
if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) { err = typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp);
if (err < 0) {
err_msg = "Could not get Sleep Image version"; err_msg = "Could not get Sleep Image version";
goto error_out_reset; goto error_out_reset;
} }
@ -2453,7 +2455,8 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev->features = dev->hw_features | dev->features = dev->hw_features |
NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_RXCSUM; NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_RXCSUM;
if(register_netdev(dev) < 0) { err = register_netdev(dev);
if (err < 0) {
err_msg = "unable to register netdev"; err_msg = "unable to register netdev";
goto error_out_reset; goto error_out_reset;
} }