blob: 093bf76a1324e949fb3278df41c2996f296785fd [file] [log] [blame]
From dfd911b062c649b495bd5cbfe7d235d51f2824b7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <>
Date: Tue, 10 Dec 2019 12:44:20 +0100
Subject: [PATCH] ath9k: fix storage endpoint lookup
commit 0ef332951e856efa89507cdd13ba8f4fb8d4db12 upstream.
Make sure to use the current alternate setting when verifying the
storage interface descriptors to avoid submitting an URB to an invalid
Failing to do so could cause the driver to misbehave or trigger a WARN()
in usb_submit_urb() that kernels with panic_on_warn set would choke on.
Fixes: 36bcce430657 ("ath9k_htc: Handle storage devices")
Cc: stable <> # 2.6.39
Signed-off-by: Johan Hovold <>
Signed-off-by: Kalle Valo <>
Signed-off-by: Paul Gortmaker <>
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index fb649d85b8fc..dd0c32379375 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -1216,7 +1216,7 @@ static void ath9k_hif_usb_firmware_cb(const struct firmware *fw, void *context)
static int send_eject_command(struct usb_interface *interface)
struct usb_device *udev = interface_to_usbdev(interface);
- struct usb_host_interface *iface_desc = &interface->altsetting[0];
+ struct usb_host_interface *iface_desc = interface->cur_altsetting;
struct usb_endpoint_descriptor *endpoint;
unsigned char *cmd;
u8 bulk_out_ep;