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path: root/drivers/net/wireless/ath/ar9170/usb.c
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Diffstat (limited to 'drivers/net/wireless/ath/ar9170/usb.c')
-rw-r--r--drivers/net/wireless/ath/ar9170/usb.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index 82ab532a492..a93dc18a45c 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -739,17 +739,27 @@ err_out:
static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
{
struct device *parent = aru->udev->dev.parent;
+ struct usb_device *udev;
+
+ /*
+ * Store a copy of the usb_device pointer locally.
+ * This is because device_release_driver initiates
+ * ar9170_usb_disconnect, which in turn frees our
+ * driver context (aru).
+ */
+ udev = aru->udev;
complete(&aru->firmware_loading_complete);
/* unbind anything failed */
if (parent)
device_lock(parent);
- device_release_driver(&aru->udev->dev);
+
+ device_release_driver(&udev->dev);
if (parent)
device_unlock(parent);
- usb_put_dev(aru->udev);
+ usb_put_dev(udev);
}
static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)