diff options
| author | Oliver Neukum <oneukum@suse.com> | 2018-09-05 13:07:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-20 13:48:39 +0300 |
| commit | 81e0403b26d94360abd1f6a57311337973bc82cd (patch) | |
| tree | 005180f44bc8ead9578b88cbc17cc2d066189e04 /drivers/usb | |
| parent | 7a68d9fb851012829c29e770621905529bd9490b (diff) | |
| download | linux-81e0403b26d94360abd1f6a57311337973bc82cd.tar.xz | |
USB: usbdevfs: restore warning for nonsensical flags
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>
Diffstat (limited to 'drivers/usb')
| -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 263dd2f309fb..244417d0dfd1 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1697,6 +1697,11 @@ 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; |