diff options
Diffstat (limited to 'drivers/usb/core/urb.c')
| -rw-r--r-- | drivers/usb/core/urb.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 909625b91eb..f4f20c7b776 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -403,20 +403,17 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) * cause problems in HCDs if they get it wrong. */ { - 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]) { - dev_err(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n", + if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) + dev_WARN(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n", usb_pipetype(urb->pipe), pipetypes[xfertype]); - return -EPIPE; /* The most suitable error code :-) */ - } - /* enforce simple/standard policy */ + /* Check against a simple/standard policy */ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT | URB_DIR_MASK | URB_FREE_BUFFER); switch (xfertype) { @@ -435,14 +432,12 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) allowed |= URB_ISO_ASAP; break; } - urb->transfer_flags &= allowed; + allowed &= urb->transfer_flags; - /* fail if submitter gave bogus flags */ - if (urb->transfer_flags != orig_flags) { - dev_err(&dev->dev, "BOGUS urb flags, %x --> %x\n", - orig_flags, urb->transfer_flags); - return -EINVAL; - } + /* warn if submitter gave bogus flags */ + if (allowed != urb->transfer_flags) + dev_WARN(&dev->dev, "BOGUS urb flags, %x --> %x\n", + urb->transfer_flags, allowed); } #endif /* |