tree 73a0d00a6c42cc73e6523c0c205224a79a87bdf9
parent f93743a333eac0817b0537f8bfeb40fe22841e87
author Johan Hovold <johan@kernel.org> 1575978260 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1580549824 +0000

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
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: 36bcce430657 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>