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orinoco: Do not call wiphy_unregister() from free_orinocodev() 

alloc_orinocodev() would allocate the wiphy entry, but it would only get
registered much later in orinoco_init(). If something failed in the init
process inbetween the call to alloc_orinocodev() and the completion
of orinoco_init(), the drivers would end up calling wiphy_unregister()
with a NULL pointer causing beautiful OOPS fireworks.

Explicitly call wiphy_unregister() instead in the right places.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Jes Sorensen 2015-08-06 12:46:31 -04:00 committed by Kalle Valo
parent cb9d61e530
commit 94fdc2e627
6 changed files with 15 additions and 5 deletions
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2
drivers/net/wireless/orinoco/main.c
View File

@ -2321,8 +2321,6 @@ void free_orinocodev(struct orinoco_private *priv)
struct orinoco_rx_data *rx_data, *temp;
struct orinoco_scan_data *sd, *sdtemp;
wiphy_unregister(wiphy);
/* If the tasklet is scheduled when we call tasklet_kill it
* will run one final time. However the tasklet will only
* drain priv->rx_list if the hw is still available. */

1
drivers/net/wireless/orinoco/orinoco_cs.c
View File

@ -118,6 +118,7 @@ static void orinoco_cs_detach(struct pcmcia_device *link)
orinoco_cs_release(link);
wiphy_unregister(priv_to_wiphy(priv));
free_orinocodev(priv);
} /* orinoco_cs_detach */

5
drivers/net/wireless/orinoco/orinoco_nortel.c
View File

@ -223,13 +223,15 @@ static int orinoco_nortel_init_one(struct pci_dev *pdev,
err = orinoco_if_add(priv, 0, 0, NULL);
if (err) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto fail;
goto fail_wiphy;
}
pci_set_drvdata(pdev, priv);
return 0;
fail_wiphy:
wiphy_unregister(priv_to_wiphy(priv));
fail:
free_irq(pdev->irq, priv);
@ -263,6 +265,7 @@ static void orinoco_nortel_remove_one(struct pci_dev *pdev)
iowrite16(0, card->bridge_io + 10);
orinoco_if_del(priv);
wiphy_unregister(priv_to_wiphy(priv));
free_irq(pdev->irq, priv);
free_orinocodev(priv);
pci_iounmap(pdev, priv->hw.iobase);

5
drivers/net/wireless/orinoco/orinoco_pci.c
View File

@ -173,13 +173,15 @@ static int orinoco_pci_init_one(struct pci_dev *pdev,
err = orinoco_if_add(priv, 0, 0, NULL);
if (err) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto fail;
goto fail_wiphy;
}
pci_set_drvdata(pdev, priv);
return 0;
fail_wiphy:
wiphy_unregister(priv_to_wiphy(priv));
fail:
free_irq(pdev->irq, priv);
@ -203,6 +205,7 @@ static void orinoco_pci_remove_one(struct pci_dev *pdev)
struct orinoco_private *priv = pci_get_drvdata(pdev);
orinoco_if_del(priv);
wiphy_unregister(priv_to_wiphy(priv));
free_irq(pdev->irq, priv);
free_orinocodev(priv);
pci_iounmap(pdev, priv->hw.iobase);

5
drivers/net/wireless/orinoco/orinoco_plx.c
View File

@ -262,13 +262,15 @@ static int orinoco_plx_init_one(struct pci_dev *pdev,
err = orinoco_if_add(priv, 0, 0, NULL);
if (err) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto fail;
goto fail_wiphy;
}
pci_set_drvdata(pdev, priv);
return 0;
fail_wiphy:
wiphy_unregister(priv_to_wiphy(priv));
fail:
free_irq(pdev->irq, priv);
@ -299,6 +301,7 @@ static void orinoco_plx_remove_one(struct pci_dev *pdev)
struct orinoco_pci_card *card = priv->card;
orinoco_if_del(priv);
wiphy_unregister(priv_to_wiphy(priv));
free_irq(pdev->irq, priv);
free_orinocodev(priv);
pci_iounmap(pdev, priv->hw.iobase);

2
drivers/net/wireless/orinoco/orinoco_usb.c
View File

@ -1502,6 +1502,7 @@ static inline void ezusb_delete(struct ezusb_priv *upriv)
if (upriv->dev) {
struct orinoco_private *priv = ndev_priv(upriv->dev);
orinoco_if_del(priv);
wiphy_unregister(priv_to_wiphy(upriv));
free_orinocodev(priv);
}
}
@ -1695,6 +1696,7 @@ static int ezusb_probe(struct usb_interface *interface,
if (orinoco_if_add(priv, 0, 0, &ezusb_netdev_ops) != 0) {
upriv->dev = NULL;
err("%s: orinoco_if_add() failed", __func__);
wiphy_unregister(priv_to_wiphy(priv));
goto error;
}
upriv->dev = priv->ndev;