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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 13:06:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 13:06:10 -0700 |
| commit | e1f5b94fd0c93c3e27ede88b7ab652d086dc960f (patch) | |
| tree | e8de7a132eb88521dd1c19e128eba2d5349bdf4f /drivers/usb/gadget/imx_udc.c | |
| parent | 6fd03301d76bc439382710e449f58efbb233df1b (diff) | |
| parent | 1b6ed69f974f6f32c8be0d9a7fc952822eb83b6f (diff) | |
| download | linux-3.10-e1f5b94fd0c93c3e27ede88b7ab652d086dc960f.tar.gz linux-3.10-e1f5b94fd0c93c3e27ede88b7ab652d086dc960f.tar.bz2 linux-3.10-e1f5b94fd0c93c3e27ede88b7ab652d086dc960f.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (143 commits)
USB: xhci depends on PCI.
USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries.
USB: xhci: Respect critical sections.
USB: xHCI: Fix interrupt moderation.
USB: xhci: Remove packed attribute from structures.
usb; xhci: Fix TRB offset calculations.
USB: xhci: replace if-elseif-else with switch-case
USB: xhci: Make xhci-mem.c include linux/dmapool.h
USB: xhci: drop spinlock in xhci_urb_enqueue() error path.
USB: Change names of SuperSpeed ep companion descriptor structs.
USB: xhci: Avoid compiler reordering in Link TRB giveback.
USB: xhci: Clean up xhci_irq() function.
USB: xhci: Avoid global namespace pollution.
USB: xhci: Fix Link TRB handoff bit twiddling.
USB: xhci: Fix register write order.
USB: xhci: fix some compiler warnings in xhci.h
USB: xhci: fix lots of compiler warnings.
USB: xhci: use xhci_handle_event instead of handle_event
USB: xhci: URB cancellation support.
USB: xhci: Scatter gather list support for bulk transfers.
...
Diffstat (limited to 'drivers/usb/gadget/imx_udc.c')
| -rw-r--r-- | drivers/usb/gadget/imx_udc.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index 168658b4b4e..c52a681f376 100644 --- a/drivers/usb/gadget/imx_udc.c +++ b/drivers/usb/gadget/imx_udc.c @@ -415,6 +415,13 @@ static int write_packet(struct imx_ep_struct *imx_ep, struct imx_request *req) u8 *buf; int length, count, temp; + if (unlikely(__raw_readl(imx_ep->imx_usb->base + + USB_EP_STAT(EP_NO(imx_ep))) & EPSTAT_ZLPS)) { + D_TRX(imx_ep->imx_usb->dev, "<%s> zlp still queued in EP %s\n", + __func__, imx_ep->ep.name); + return -1; + } + buf = req->req.buf + req->req.actual; prefetch(buf); @@ -734,9 +741,12 @@ static struct usb_request *imx_ep_alloc_request { struct imx_request *req; + if (!usb_ep) + return NULL; + req = kzalloc(sizeof *req, gfp_flags); - if (!req || !usb_ep) - return 0; + if (!req) + return NULL; INIT_LIST_HEAD(&req->queue); req->in_use = 0; |