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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-03 09:26:33 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-03 09:26:33 +0300 |
| commit | c50e86ce7c2961a41f2f7aa6e4fd6c99229ba205 (patch) | |
| tree | 4ea36009719bd8fc523239fe1bdccb90f0dce3ae /drivers/usb/core/hcd.c | |
| parent | 14d33d384693eb6083396199de516fdef320f7af (diff) | |
| parent | 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff) | |
Merge tag 'v3.6-rc4'
Merge 3.6-rc4 to get latest OMAP and device tree fixes.
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 190b1ec7bdc..bc84106ac05 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1398,7 +1398,15 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) { if (hcd->self.uses_dma) { if (urb->num_sgs) { - int n = dma_map_sg( + int n; + + /* We don't support sg for isoc transfers ! */ + if (usb_endpoint_xfer_isoc(&urb->ep->desc)) { + WARN_ON(1); + return -EINVAL; + } + + n = dma_map_sg( hcd->self.controller, urb->sg, urb->num_sgs, |