diff options
| author | Olof Johansson <olof@lixom.net> | 2013-04-02 18:33:58 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-04-02 18:33:58 -0700 |
| commit | 06b851e58b73a268f8092c2d990f697b2e7c53bd (patch) | |
| tree | a44e10462a39202b60636f8b102376a9c69169c1 /drivers/usb/musb/musb_gadget.c | |
| parent | 5f03dc2002f5dc85ce87e69caff7f28f17f5c9b2 (diff) | |
| parent | 17e7979f83c1de305fa81efb0aa7a3a56bd8121c (diff) | |
Merge branch 'lpc32xx/defconfig' of git://git.antcom.de/linux-2.6 into next/soc
* 'lpc32xx/defconfig' of git://git.antcom.de/linux-2.6: (604 commits)
ARM: LPC32xx: defconfig update: Cleanup (EXPERIMENTAL)
ARM: LPC32xx: defconfig update: Remove the museum NAND option
ARM: LPC32xx: defconfig update: Default drivers and cleanup
ARM: LPC32xx: defconfig update: gpio and keys
+ Linux 3.9-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/Kconfig
Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index be18537c5f1..83eddedcd9b 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -141,7 +141,9 @@ static inline void map_dma_buffer(struct musb_request *request, static inline void unmap_dma_buffer(struct musb_request *request, struct musb *musb) { - if (!is_buffer_mapped(request)) + struct musb_ep *musb_ep = request->ep; + + if (!is_buffer_mapped(request) || !musb_ep->dma) return; if (request->request.dma == DMA_ADDR_INVALID) { @@ -195,7 +197,10 @@ __acquires(ep->musb->lock) ep->busy = 1; spin_unlock(&musb->lock); - unmap_dma_buffer(req, musb); + + if (!dma_mapping_error(&musb->g.dev, request->dma)) + unmap_dma_buffer(req, musb); + if (request->status == 0) dev_dbg(musb->controller, "%s done request %p, %d/%d\n", ep->end_point.name, request, |