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-rw-r--r--drivers/net/wireless/ath/ar9170/ar9170.h1
-rw-r--r--drivers/net/wireless/ath/ar9170/main.c10
-rw-r--r--drivers/net/wireless/ath/ar9170/usb.c170
3 files changed, 111 insertions, 70 deletions
diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h
index 8c8ce67971e..dc662b76a1c 100644
--- a/drivers/net/wireless/ath/ar9170/ar9170.h
+++ b/drivers/net/wireless/ath/ar9170/ar9170.h
@@ -166,6 +166,7 @@ struct ar9170 {
struct ath_common common;
struct mutex mutex;
enum ar9170_device_state state;
+ bool registered;
unsigned long bad_hw_nagger;
int (*open)(struct ar9170 *);
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 8a964f13036..f4650fcdebc 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -2701,7 +2701,8 @@ int ar9170_register(struct ar9170 *ar, struct device *pdev)
dev_info(pdev, "Atheros AR9170 is registered as '%s'\n",
wiphy_name(ar->hw->wiphy));
- return err;
+ ar->registered = true;
+ return 0;
err_unreg:
ieee80211_unregister_hw(ar->hw);
@@ -2712,11 +2713,14 @@ err_out:
void ar9170_unregister(struct ar9170 *ar)
{
+ if (ar->registered) {
#ifdef CONFIG_AR9170_LEDS
- ar9170_unregister_leds(ar);
+ ar9170_unregister_leds(ar);
#endif /* CONFIG_AR9170_LEDS */
- kfree_skb(ar->rx_failover);
ieee80211_unregister_hw(ar->hw);
+ }
+
+ kfree_skb(ar->rx_failover);
mutex_destroy(&ar->mutex);
}
diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index 0f361186b78..4e30197afff 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -582,43 +582,6 @@ static int ar9170_usb_upload(struct ar9170_usb *aru, const void *data,
return 0;
}
-static int ar9170_usb_request_firmware(struct ar9170_usb *aru)
-{
- int err = 0;
-
- err = request_firmware(&aru->firmware, "ar9170.fw",
- &aru->udev->dev);
- if (!err) {
- aru->init_values = NULL;
- return 0;
- }
-
- if (aru->req_one_stage_fw) {
- dev_err(&aru->udev->dev, "ar9170.fw firmware file "
- "not found and is required for this device\n");
- return -EINVAL;
- }
-
- dev_err(&aru->udev->dev, "ar9170.fw firmware file "
- "not found, trying old firmware...\n");
-
- err = request_firmware(&aru->init_values, "ar9170-1.fw",
- &aru->udev->dev);
- if (err) {
- dev_err(&aru->udev->dev, "file with init values not found.\n");
- return err;
- }
-
- err = request_firmware(&aru->firmware, "ar9170-2.fw", &aru->udev->dev);
- if (err) {
- release_firmware(aru->init_values);
- dev_err(&aru->udev->dev, "firmware file not found.\n");
- return err;
- }
-
- return err;
-}
-
static int ar9170_usb_reset(struct ar9170_usb *aru)
{
int ret, lock = (aru->intf->condition != USB_INTERFACE_BINDING);
@@ -757,6 +720,103 @@ err_out:
return err;
}
+static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
+{
+ struct device *parent = aru->udev->dev.parent;
+
+ /* unbind anything failed */
+ if (parent)
+ down(&parent->sem);
+ device_release_driver(&aru->udev->dev);
+ if (parent)
+ up(&parent->sem);
+}
+
+static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
+{
+ struct ar9170_usb *aru = context;
+ int err;
+
+ aru->firmware = fw;
+
+ if (!fw) {
+ dev_err(&aru->udev->dev, "firmware file not found.\n");
+ goto err_freefw;
+ }
+
+ err = ar9170_usb_init_device(aru);
+ if (err)
+ goto err_freefw;
+
+ err = ar9170_usb_open(&aru->common);
+ if (err)
+ goto err_unrx;
+
+ err = ar9170_register(&aru->common, &aru->udev->dev);
+
+ ar9170_usb_stop(&aru->common);
+ if (err)
+ goto err_unrx;
+
+ return;
+
+ err_unrx:
+ ar9170_usb_cancel_urbs(aru);
+
+ err_freefw:
+ ar9170_usb_firmware_failed(aru);
+}
+
+static void ar9170_usb_firmware_inits(const struct firmware *fw,
+ void *context)
+{
+ struct ar9170_usb *aru = context;
+ int err;
+
+ if (!fw) {
+ dev_err(&aru->udev->dev, "file with init values not found.\n");
+ ar9170_usb_firmware_failed(aru);
+ return;
+ }
+
+ aru->init_values = fw;
+
+ /* ok so we have the init values -- get code for two-stage */
+
+ err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-2.fw",
+ &aru->udev->dev, GFP_KERNEL, aru,
+ ar9170_usb_firmware_finish);
+ if (err)
+ ar9170_usb_firmware_failed(aru);
+}
+
+static void ar9170_usb_firmware_step2(const struct firmware *fw, void *context)
+{
+ struct ar9170_usb *aru = context;
+ int err;
+
+ if (fw) {
+ ar9170_usb_firmware_finish(fw, context);
+ return;
+ }
+
+ if (aru->req_one_stage_fw) {
+ dev_err(&aru->udev->dev, "ar9170.fw firmware file "
+ "not found and is required for this device\n");
+ ar9170_usb_firmware_failed(aru);
+ return;
+ }
+
+ dev_err(&aru->udev->dev, "ar9170.fw firmware file "
+ "not found, trying old firmware...\n");
+
+ err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-1.fw",
+ &aru->udev->dev, GFP_KERNEL, aru,
+ ar9170_usb_firmware_inits);
+ if (err)
+ ar9170_usb_firmware_failed(aru);
+}
+
static bool ar9170_requires_one_stage(const struct usb_device_id *id)
{
if (!id->driver_info)
@@ -814,33 +874,9 @@ static int ar9170_usb_probe(struct usb_interface *intf,
if (err)
goto err_freehw;
- err = ar9170_usb_request_firmware(aru);
- if (err)
- goto err_freehw;
-
- err = ar9170_usb_init_device(aru);
- if (err)
- goto err_freefw;
-
- err = ar9170_usb_open(ar);
- if (err)
- goto err_unrx;
-
- err = ar9170_register(ar, &udev->dev);
-
- ar9170_usb_stop(ar);
- if (err)
- goto err_unrx;
-
- return 0;
-
-err_unrx:
- ar9170_usb_cancel_urbs(aru);
-
-err_freefw:
- release_firmware(aru->init_values);
- release_firmware(aru->firmware);
-
+ return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw",
+ &aru->udev->dev, GFP_KERNEL, aru,
+ ar9170_usb_firmware_step2);
err_freehw:
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
@@ -860,12 +896,12 @@ static void ar9170_usb_disconnect(struct usb_interface *intf)
ar9170_unregister(&aru->common);
ar9170_usb_cancel_urbs(aru);
- release_firmware(aru->init_values);
- release_firmware(aru->firmware);
-
usb_put_dev(aru->udev);
usb_set_intfdata(intf, NULL);
ieee80211_free_hw(aru->common.hw);
+
+ release_firmware(aru->init_values);
+ release_firmware(aru->firmware);
}
#ifdef CONFIG_PM
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 17:47:39 +0000