diff options
Diffstat (limited to 'drivers/usb/core/urb.c')
| -rw-r--r-- | drivers/usb/core/urb.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index e7cae1334693..e2bd153cbd89 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -387,6 +387,13 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) { unsigned int orig_flags = urb->transfer_flags; unsigned int allowed; + static int pipetypes[4] = { + PIPE_CONTROL, PIPE_ISOCHRONOUS, PIPE_BULK, PIPE_INTERRUPT + }; + + /* Check that the pipe's type matches the endpoint's type */ + if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) + return -EPIPE; /* The most suitable error code :-) */ /* enforce simple/standard policy */ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP | |