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iwlwifi: fix error flow in iwl*_pci_probe

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Both the agn and 3945 drivers has some problems with dealing with
errors in their probe functions. Ensure that a goto will undo only
things that was done before the goto was called.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Reinette Chatre 2009-03-03 11:37:04 -08:00 committed by John W. Linville
parent ef4bb70d87
commit 623d563e52
2 changed files with 11 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -3868,7 +3868,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
err = iwl_eeprom_check_version(priv);
if (err)
goto out_iounmap;
goto out_free_eeprom;
/* extract MAC Address */
iwl_eeprom_get_mac(priv, priv->mac_addr);
@ -3945,6 +3945,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0;
out_remove_sysfs:
destroy_workqueue(priv->workqueue);
priv->workqueue = NULL;
sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
out_uninit_drv:
iwl_uninit_drv(priv);
@ -3953,8 +3955,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
out_iounmap:
pci_iounmap(pdev, priv->hw_base);
out_pci_release_regions:
pci_release_regions(pdev);
pci_set_drvdata(pdev, NULL);
pci_release_regions(pdev);
out_pci_disable_device:
pci_disable_device(pdev);
out_ieee80211_free_hw:

17
drivers/net/wireless/iwlwifi/iwl3945-base.c
View File

@ -7911,7 +7911,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
if (err < 0) {
IWL_DEBUG_INFO("Failed to init the card\n");
goto out_remove_sysfs;
goto out_iounmap;
}
/***********************
@ -7921,7 +7921,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
err = iwl3945_eeprom_init(priv);
if (err) {
IWL_ERROR("Unable to init EEPROM\n");
goto out_remove_sysfs;
goto out_iounmap;
}
/* MAC Address location in EEPROM same for 3945/4965 */
get_eeprom_mac(priv, priv->mac_addr);
@ -7975,7 +7975,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
err = iwl3945_init_channel_map(priv);
if (err) {
IWL_ERROR("initializing regulatory failed: %d\n", err);
goto out_release_irq;
goto out_unset_hw_setting;
}
err = iwl3945_init_geos(priv);
@ -8045,25 +8045,22 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
return 0;
out_remove_sysfs:
destroy_workqueue(priv->workqueue);
priv->workqueue = NULL;
sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
out_free_geos:
iwl3945_free_geos(priv);
out_free_channel_map:
iwl3945_free_channel_map(priv);
out_release_irq:
destroy_workqueue(priv->workqueue);
priv->workqueue = NULL;
out_unset_hw_setting:
iwl3945_unset_hw_setting(priv);
out_iounmap:
pci_iounmap(pdev, priv->hw_base);
out_pci_release_regions:
pci_release_regions(pdev);
out_pci_disable_device:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
out_ieee80211_free_hw:
ieee80211_free_hw(priv->hw);
out: