diff options
| -rw-r--r-- | drivers/net/wireless/mwifiex/usb.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index 1c70b8d09227..edf5b7a24900 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -350,7 +350,6 @@ static int mwifiex_usb_probe(struct usb_interface *intf, card->udev = udev; card->intf = intf; - usb_card = card; pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n", udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass, @@ -525,25 +524,28 @@ static int mwifiex_usb_resume(struct usb_interface *intf) static void mwifiex_usb_disconnect(struct usb_interface *intf) { struct usb_card_rec *card = usb_get_intfdata(intf); - struct mwifiex_adapter *adapter; - if (!card || !card->adapter) { - pr_err("%s: card or card->adapter is NULL\n", __func__); + if (!card) { + pr_err("%s: card is NULL\n", __func__); return; } - adapter = card->adapter; - if (!adapter->priv_num) - return; - mwifiex_usb_free(card); - dev_dbg(adapter->dev, "%s: removing card\n", __func__); - mwifiex_remove_card(adapter, &add_remove_card_sem); + if (card->adapter) { + struct mwifiex_adapter *adapter = card->adapter; + + if (!adapter->priv_num) + return; + + dev_dbg(adapter->dev, "%s: removing card\n", __func__); + mwifiex_remove_card(adapter, &add_remove_card_sem); + } usb_set_intfdata(intf, NULL); usb_put_dev(interface_to_usbdev(intf)); kfree(card); + usb_card = NULL; return; } @@ -754,6 +756,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter) card->adapter = adapter; adapter->dev = &card->udev->dev; strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME); + usb_card = card; return 0; } @@ -762,7 +765,7 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter) { struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; - usb_set_intfdata(card->intf, NULL); + card->adapter = NULL; } static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, @@ -1004,7 +1007,7 @@ static void mwifiex_usb_cleanup_module(void) if (!down_interruptible(&add_remove_card_sem)) up(&add_remove_card_sem); - if (usb_card) { + if (usb_card && usb_card->adapter) { struct mwifiex_adapter *adapter = usb_card->adapter; int i; |