ALSA: usx2y: Add sanity checks for invalid EPs
usx2y driver sets up URBs containing the fixed endpoints without
validation. This may end up with an oops-like kernel warning when
submitted.
For avoiding it, this patch adds the calls of the new sanity-check
helper for URBs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
index 4569c0e..0ddf292 100644
--- a/sound/usb/usx2y/usbusx2y.c
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -279,6 +279,9 @@ int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
i_usX2Y_Out04Int, usX2Y
);
+ err = usb_urb_ep_type_check(usX2Y->AS04.urb[i]);
+ if (err < 0)
+ break;
}
return err;
}
@@ -298,6 +301,8 @@ int usX2Y_In04_init(struct usX2Ydev *usX2Y)
usX2Y->In04Buf, 21,
i_usX2Y_In04Int, usX2Y,
10);
+ if (usb_urb_ep_type_check(usX2Y->In04urb))
+ return -EINVAL;
return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
}
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index f93b355..345e439 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -677,6 +677,9 @@ static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate)
usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4),
usbdata + i, 2, i_usX2Y_04Int, usX2Y);
}
+ err = usb_urb_ep_type_check(us->urb[0]);
+ if (err < 0)
+ goto cleanup;
us->submitted = 0;
us->len = NOOF_SETRATE_URBS;
usX2Y->US04 = us;