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iwlwifi: fix error flow in iwl*_pci_probe
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:
parent
ef4bb70d87
commit
623d563e52
2 changed files with 11 additions and 12 deletions
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@ -3868,7 +3868,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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}
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err = iwl_eeprom_check_version(priv);
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if (err)
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goto out_iounmap;
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goto out_free_eeprom;
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/* extract MAC Address */
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iwl_eeprom_get_mac(priv, priv->mac_addr);
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@ -3945,6 +3945,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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return 0;
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out_remove_sysfs:
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destroy_workqueue(priv->workqueue);
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priv->workqueue = NULL;
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sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
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out_uninit_drv:
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iwl_uninit_drv(priv);
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@ -3953,8 +3955,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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out_iounmap:
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pci_iounmap(pdev, priv->hw_base);
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out_pci_release_regions:
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pci_release_regions(pdev);
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pci_set_drvdata(pdev, NULL);
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pci_release_regions(pdev);
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out_pci_disable_device:
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pci_disable_device(pdev);
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out_ieee80211_free_hw:
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@ -7911,7 +7911,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
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CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
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if (err < 0) {
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IWL_DEBUG_INFO("Failed to init the card\n");
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goto out_remove_sysfs;
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goto out_iounmap;
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}
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/***********************
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@ -7921,7 +7921,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
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err = iwl3945_eeprom_init(priv);
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if (err) {
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IWL_ERROR("Unable to init EEPROM\n");
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goto out_remove_sysfs;
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goto out_iounmap;
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}
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/* MAC Address location in EEPROM same for 3945/4965 */
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get_eeprom_mac(priv, priv->mac_addr);
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@ -7975,7 +7975,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
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err = iwl3945_init_channel_map(priv);
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if (err) {
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IWL_ERROR("initializing regulatory failed: %d\n", err);
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goto out_release_irq;
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goto out_unset_hw_setting;
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}
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err = iwl3945_init_geos(priv);
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@ -8045,25 +8045,22 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
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return 0;
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out_remove_sysfs:
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destroy_workqueue(priv->workqueue);
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priv->workqueue = NULL;
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sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
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out_free_geos:
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iwl3945_free_geos(priv);
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out_free_channel_map:
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iwl3945_free_channel_map(priv);
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out_release_irq:
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destroy_workqueue(priv->workqueue);
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priv->workqueue = NULL;
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out_unset_hw_setting:
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iwl3945_unset_hw_setting(priv);
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out_iounmap:
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pci_iounmap(pdev, priv->hw_base);
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out_pci_release_regions:
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pci_release_regions(pdev);
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out_pci_disable_device:
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pci_disable_device(pdev);
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pci_set_drvdata(pdev, NULL);
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pci_disable_device(pdev);
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out_ieee80211_free_hw:
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ieee80211_free_hw(priv->hw);
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out:
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