diff mbox series

[V3] wifi: ath6kl: Replace ath6kl_usb_submit_ctrl_in with usb_control_msg_recv

Message ID tencent_AAA2EDEACE4478EA6C9C2CA96E8095DCE80A@qq.com (mailing list archive)
State Superseded
Headers show
Series [V3] wifi: ath6kl: Replace ath6kl_usb_submit_ctrl_in with usb_control_msg_recv | expand

Commit Message

Edward Adam Davis Aug. 26, 2024, 11:19 a.m. UTC
ath6kl_usb_submit_ctrl_in() did not take into account the situation where
the length of the data read from the device is not equal to the len, and
such missing judgments will result in subsequent code using incorrect data.

usb_control_msg_recv() handles the abnormal length of the returned data,
so using it directly can fix this warning.

Reported-by: syzbot+92c6dd14aaa230be6855@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
---
V2 -> V3: Adjust indentation style

 drivers/net/wireless/ath/ath6kl/usb.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index 5220809841a6..5b1ce4f9ed54 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1027,9 +1027,11 @@  static int ath6kl_usb_bmi_read(struct ath6kl *ar, u8 *buf, u32 len)
 	int ret;
 
 	/* get response */
-	ret = ath6kl_usb_submit_ctrl_in(ar_usb,
-					ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP,
-					0, 0, buf, len);
+	ret = usb_control_msg_recv(ar_usb->udev, 0,
+				ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP,
+				USB_DIR_IN | USB_TYPE_VENDOR |
+				USB_RECIP_DEVICE, 0, 0, buf, len, 2000,
+				GFP_KERNEL);
 	if (ret) {
 		ath6kl_err("Unable to read the bmi data from the device: %d\n",
 			   ret);