diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 69bef1de71ae..e2117e7222e7 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -32,27 +32,15 @@ static int __hif_usb_tx(struct hif_device_usb *hif_dev); static void hif_usb_regout_cb(struct urb *urb) { struct cmd_buf *cmd = (struct cmd_buf *)urb->context; - struct hif_device_usb *hif_dev = cmd->hif_dev; - - if (!hif_dev) { - usb_free_urb(urb); - if (cmd) { - if (cmd->skb) - dev_kfree_skb_any(cmd->skb); - kfree(cmd); - } - return; - } switch (urb->status) { case 0: break; case -ENOENT: case -ECONNRESET: - break; case -ENODEV: case -ESHUTDOWN: - return; + goto free; default: break; } @@ -61,8 +49,12 @@ static void hif_usb_regout_cb(struct urb *urb) ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle, cmd->skb, 1); kfree(cmd); - usb_free_urb(urb); } + + return; +free: + dev_kfree_skb_any(cmd->skb); + kfree(cmd); } static int hif_usb_send_regout(struct hif_device_usb *hif_dev, @@ -90,11 +82,13 @@ static int hif_usb_send_regout(struct hif_device_usb *hif_dev, skb->data, skb->len, hif_usb_regout_cb, cmd, 1); + usb_anchor_urb(urb, &hif_dev->regout_submitted); ret = usb_submit_urb(urb, GFP_KERNEL); if (ret) { - usb_free_urb(urb); + usb_unanchor_urb(urb); kfree(cmd); } + usb_free_urb(urb); return ret; } @@ -711,6 +705,9 @@ static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb *hif_dev) static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev) { + /* Register Write */ + init_usb_anchor(&hif_dev->regout_submitted); + /* TX */ if (ath9k_hif_usb_alloc_tx_urbs(hif_dev) < 0) goto err; @@ -719,7 +716,7 @@ static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev) if (ath9k_hif_usb_alloc_rx_urbs(hif_dev) < 0) goto err; - /* Register Read/Write */ + /* Register Read */ if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev) < 0) goto err; @@ -816,6 +813,7 @@ static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev, static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev) { + usb_kill_anchored_urbs(&hif_dev->regout_submitted); ath9k_hif_usb_dealloc_reg_in_urb(hif_dev); ath9k_hif_usb_dealloc_tx_urbs(hif_dev); ath9k_hif_usb_dealloc_rx_urbs(hif_dev); diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.h b/drivers/net/wireless/ath/ath9k/hif_usb.h index 179cea46a8e7..7d49a8af420e 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.h +++ b/drivers/net/wireless/ath/ath9k/hif_usb.h @@ -88,6 +88,7 @@ struct hif_device_usb { struct htc_target *htc_handle; struct hif_usb_tx tx; struct urb *reg_in_urb; + struct usb_anchor regout_submitted; struct usb_anchor rx_submitted; struct sk_buff *remain_skb; int rx_remain_len;