From: Fred Chou <fred.chou.nd@xxxxxxxxx>
The temporary buffer to hold firmware data is not really needed,
and memcpy can be avoided by using data pointer instead.
Signed-off-by: Fred Chou <fred.chou.nd@xxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/hif_usb.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 10c02f5..0bc35a8 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -986,30 +986,22 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
const void *data = hif_dev->fw_data;
size_t len = hif_dev->fw_size;
u32 addr = AR9271_FIRMWARE;
- u8 *buf = kzalloc(4096, GFP_KERNEL);
u32 firm_offset;
- if (!buf)
- return -ENOMEM;
-
while (len) {
transfer = min_t(size_t, len, 4096);
- memcpy(buf, data, transfer);
err = usb_control_msg(hif_dev->udev,
usb_sndctrlpipe(hif_dev->udev, 0),
FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT,
- addr >> 8, 0, buf, transfer, HZ);
- if (err < 0) {
- kfree(buf);
+ addr >> 8, 0, data, transfer, HZ);
+ if (err < 0)
return err;
- }
len -= transfer;
data += transfer;
addr += transfer;
}
- kfree(buf);
if (IS_AR7010_DEVICE(hif_dev->usb_device_id->driver_info))
firm_offset = AR7010_FIRMWARE_TEXT;
--
1.9.1
--
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