diff options
| author | Oliver Neukum <oneukum@suse.com> | 2018-09-05 12:07:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-10 08:52:08 +0200 |
| commit | 30948c685b98042991459f7d386d48ac8a80b5cf (patch) | |
| tree | cd3b0d2d3d91b0fed06d09422e876d548b807b29 | |
| parent | 26eaa502770cfe4412e57a8151c8eea7247d1ec4 (diff) | |
USB: usbdevfs: restore warning for nonsensical flags
commit 81e0403b26d94360abd1f6a57311337973bc82cd upstream.
If we filter flags before they reach the core we need to generate our
own warnings.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Fixes: 0cb54a3e47cb ("USB: debugging code shouldn't alter control flow")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/devio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 26141a1db9f6..5e0af15aebc4 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1535,6 +1535,11 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb u |= URB_NO_INTERRUPT; as->urb->transfer_flags = u; + if (!allow_short && uurb->flags & USBDEVFS_URB_SHORT_NOT_OK) + dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n"); + if (!allow_zero && uurb->flags & USBDEVFS_URB_ZERO_PACKET) + dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n"); + as->urb->transfer_buffer_length = uurb->buffer_length; as->urb->setup_packet = (unsigned char *)dr; dr = NULL; |