From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.atheros.com ([12.36.123.2]:65016 "EHLO mail.atheros.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755450Ab0DWE6j (ORCPT ); Fri, 23 Apr 2010 00:58:39 -0400 Received: from mail.atheros.com ([10.10.20.108]) by sidewinder.atheros.com for ; Thu, 22 Apr 2010 21:58:39 -0700 From: Sujith MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-ID: <19409.10473.482170.515511@gargle.gargle.HOWL> Date: Fri, 23 Apr 2010 10:28:17 +0530 To: CC: Subject: [PATCH 08/11] ath9k_htc: Process command data properly Sender: linux-wireless-owner@vger.kernel.org List-ID: When handling the REGIN callback, processing the incoming data first should be the preferred mode of operation. Allocation of a new SKB may fail, in which case, the URB will not be resubmitted. Signed-off-by: Sujith --- drivers/net/wireless/ath/ath9k/hif_usb.c | 18 ++++++++++++------ 1 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 31665c5..49b7a89 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -510,9 +510,18 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb) if (likely(urb->actual_length != 0)) { skb_put(skb, urb->actual_length); + /* Process the command first */ + ath9k_htc_rx_msg(hif_dev->htc_handle, skb, + skb->len, USB_REG_IN_PIPE); + + nskb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC); - if (!nskb) - goto resubmit; + if (!nskb) { + dev_err(&hif_dev->udev->dev, + "ath9k_htc: REG_IN memory allocation failure\n"); + urb->context = NULL; + return; + } usb_fill_int_urb(urb, hif_dev->udev, usb_rcvintpipe(hif_dev->udev, USB_REG_IN_PIPE), @@ -522,12 +531,9 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb) ret = usb_submit_urb(urb, GFP_ATOMIC); if (ret) { kfree_skb(nskb); - goto free; + urb->context = NULL; } - ath9k_htc_rx_msg(hif_dev->htc_handle, skb, - skb->len, USB_REG_IN_PIPE); - return; } -- 1.7.0.5