usb: renesas_usbhs: return error if wrong recip request
There are some USB Host which doesn't notice disconnection at once.
And it might try some request after reconnection with old settings.
Current renesas_usbhs will crash in such case.
This patch prevent this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index d027c80a..206cfab 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -583,6 +583,10 @@
char *msg;
uep = usbhsg_gpriv_to_nth_uep(gpriv, nth);
+ if (!usbhsg_uep_to_pipe(uep)) {
+ dev_err(dev, "wrong recip request\n");
+ return -EINVAL;
+ }
switch (recip) {
case USB_RECIP_DEVICE:
