Commit 2d68bb26 authored Dec 10, 2019 by Johan Hovold Committed by Kalle Valo Dec 18, 2019

zd1211rw: fix storage endpoint lookup



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: a1030e92 ("[PATCH] zd1211rw: Convert installer CDROM device into WLAN device")
Cc: stable <stable@vger.kernel.org>     # 2.6.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

parent 3139b180

drivers/net/wireless/zydas/zd1211rw/zd_usb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1263,7 +1263,7 @@ static void print_id(struct usb_device *udev)
		static int eject_installer(struct usb_interface *intf)
		{
		struct usb_device *udev = interface_to_usbdev(intf);
		struct usb_host_interface *iface_desc = &intf->altsetting[0];
		struct usb_host_interface *iface_desc = intf->cur_altsetting;
		struct usb_endpoint_descriptor *endpoint;
		unsigned char *cmd;
		u8 bulk_out_ep;

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