From 94fdc2e627d1b479a117cd8b9ece5f4613a5c956 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Thu, 6 Aug 2015 12:46:31 -0400 Subject: [PATCH] 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 Signed-off-by: Kalle Valo --- drivers/net/wireless/orinoco/main.c | 2 -- drivers/net/wireless/orinoco/orinoco_cs.c | 1 + drivers/net/wireless/orinoco/orinoco_nortel.c | 5 ++++- drivers/net/wireless/orinoco/orinoco_pci.c | 5 ++++- drivers/net/wireless/orinoco/orinoco_plx.c | 5 ++++- drivers/net/wireless/orinoco/orinoco_usb.c | 2 ++ 6 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index c410180..7b5c554 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -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. */ diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c index c0a2737..a956f96 100644 --- a/drivers/net/wireless/orinoco/orinoco_cs.c +++ b/drivers/net/wireless/orinoco/orinoco_cs.c @@ -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 */ diff --git a/drivers/net/wireless/orinoco/orinoco_nortel.c b/drivers/net/wireless/orinoco/orinoco_nortel.c index 1b543e3..048693b 100644 --- a/drivers/net/wireless/orinoco/orinoco_nortel.c +++ b/drivers/net/wireless/orinoco/orinoco_nortel.c @@ -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); diff --git a/drivers/net/wireless/orinoco/orinoco_pci.c b/drivers/net/wireless/orinoco/orinoco_pci.c index 74219d59..4938a22 100644 --- a/drivers/net/wireless/orinoco/orinoco_pci.c +++ b/drivers/net/wireless/orinoco/orinoco_pci.c @@ -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); diff --git a/drivers/net/wireless/orinoco/orinoco_plx.c b/drivers/net/wireless/orinoco/orinoco_plx.c index 8b04523..2213520 100644 --- a/drivers/net/wireless/orinoco/orinoco_plx.c +++ b/drivers/net/wireless/orinoco/orinoco_plx.c @@ -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); diff --git a/drivers/net/wireless/orinoco/orinoco_usb.c b/drivers/net/wireless/orinoco/orinoco_usb.c index 91f0544..26a57d7 100644 --- a/drivers/net/wireless/orinoco/orinoco_usb.c +++ b/drivers/net/wireless/orinoco/orinoco_usb.c @@ -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; -- 2.7.4