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path: root/drivers/usb/core/urb.c
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Diffstat (limited to 'drivers/usb/core/urb.c')
-rw-r--r--drivers/usb/core/urb.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index e7cae1334693..27080561a1c2 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 |
@@ -430,7 +437,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
case USB_ENDPOINT_XFER_INT:
/* too small? */
switch (dev->speed) {
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
if (urb->interval < 6)
return -EINVAL;
break;
@@ -446,7 +453,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
if (urb->interval > (1 << 15))
return -EINVAL;
max = 1 << 15;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
if (urb->interval > 16)
return -EINVAL;
break;
@@ -473,7 +480,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
default:
return -EINVAL;
}
- if (dev->speed != USB_SPEED_VARIABLE) {
+ if (dev->speed != USB_SPEED_WIRELESS) {
/* Round down to a power of 2, no more than max */
urb->interval = min(max, 1 << ilog2(urb->interval));
}