mirror/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ath9k: fix storage endpoint lookup

Browse Source 
Make sure to use the current alternate setting when verifying the
storage interface descriptors to avoid submitting an URB to an invalid
endpoint.

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: 36bcce4306 ("ath9k_htc: Handle storage devices")
Cc: stable <stable@vger.kernel.org>     # 2.6.39
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Johan Hovold
2019-12-10 12:44:20 +01:00
committed by Kalle Valo
parent d1389e19e6
commit 0ef332951e
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath9k/hif_usb.c
View File

@@ -1216,7 +1216,7 @@ err_fw:
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;