diff options
| author | Linus Walleij | 2015-08-13 14:42:55 +0200 |
|---|---|---|
| committer | Linus Walleij | 2015-08-13 14:42:55 +0200 |
| commit | 5f6f02cd49d61e9856ff2c337578316a1a1b3f88 (patch) | |
| tree | fd2e6961e8f609af41dd4a282008e1bc52cfa7c7 /drivers/usb/gadget/udc/udc-core.c | |
| parent | gpio: brcmstb: support wakeup from S5 cold boot (diff) | |
| parent | Linux 4.2-rc4 (diff) | |
| download | kernel-qcow2-linux-5f6f02cd49d61e9856ff2c337578316a1a1b3f88.tar.gz kernel-qcow2-linux-5f6f02cd49d61e9856ff2c337578316a1a1b3f88.tar.xz kernel-qcow2-linux-5f6f02cd49d61e9856ff2c337578316a1a1b3f88.zip | |
Merge tag 'v4.2-rc4' into devel
Linux 4.2-rc4
Diffstat (limited to 'drivers/usb/gadget/udc/udc-core.c')
| -rw-r--r-- | drivers/usb/gadget/udc/udc-core.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index d69c35558f68..362ee8af5fce 100644 --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -60,13 +60,15 @@ static DEFINE_MUTEX(udc_lock); int usb_gadget_map_request(struct usb_gadget *gadget, struct usb_request *req, int is_in) { + struct device *dev = gadget->dev.parent; + if (req->length == 0) return 0; if (req->num_sgs) { int mapped; - mapped = dma_map_sg(&gadget->dev, req->sg, req->num_sgs, + mapped = dma_map_sg(dev, req->sg, req->num_sgs, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); if (mapped == 0) { dev_err(&gadget->dev, "failed to map SGs\n"); @@ -75,11 +77,11 @@ int usb_gadget_map_request(struct usb_gadget *gadget, req->num_mapped_sgs = mapped; } else { - req->dma = dma_map_single(&gadget->dev, req->buf, req->length, + req->dma = dma_map_single(dev, req->buf, req->length, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - if (dma_mapping_error(&gadget->dev, req->dma)) { - dev_err(&gadget->dev, "failed to map buffer\n"); + if (dma_mapping_error(dev, req->dma)) { + dev_err(dev, "failed to map buffer\n"); return -EFAULT; } } @@ -95,12 +97,12 @@ void usb_gadget_unmap_request(struct usb_gadget *gadget, return; if (req->num_mapped_sgs) { - dma_unmap_sg(&gadget->dev, req->sg, req->num_mapped_sgs, + dma_unmap_sg(gadget->dev.parent, req->sg, req->num_mapped_sgs, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->num_mapped_sgs = 0; } else { - dma_unmap_single(&gadget->dev, req->dma, req->length, + dma_unmap_single(gadget->dev.parent, req->dma, req->length, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); } } |