diff options
| author | Li Jun <jun.li@nxp.com> | 2021-05-08 08:33:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-13 17:02:30 +0300 |
| commit | 216e0e563d81ff9a16627b3d95cbfe5fa88153d7 (patch) | |
| tree | 648de2af1c052bce2beccda0466399e05f4de34f /drivers | |
| parent | cbbc07e1e892c373f30f4ba08fedecd49afca247 (diff) | |
| download | linux-216e0e563d81ff9a16627b3d95cbfe5fa88153d7.tar.xz | |
usb: core: hcd: use map_urb_for_dma for single step set feature urb
Use map_urb_for_dma() to improve the dma map code for single step
set feature request urb in test mode.
Signed-off-by: Li Jun <jun.li@nxp.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/1620452039-11694-3-git-send-email-jun.li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/hcd.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index d7eb9f179ca6..0f8b7c93310e 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2159,16 +2159,12 @@ static struct urb *request_single_step_set_feature_urb( usb_get_urb(urb); atomic_inc(&urb->use_count); atomic_inc(&urb->dev->urbnum); - urb->setup_dma = dma_map_single( - hcd->self.sysdev, - urb->setup_packet, - sizeof(struct usb_ctrlrequest), - DMA_TO_DEVICE); - urb->transfer_dma = dma_map_single( - hcd->self.sysdev, - urb->transfer_buffer, - urb->transfer_buffer_length, - DMA_FROM_DEVICE); + if (map_urb_for_dma(hcd, urb, GFP_KERNEL)) { + usb_put_urb(urb); + usb_free_urb(urb); + return NULL; + } + urb->context = done; return urb; } |