diff options
| author | Dave Airlie <airlied@redhat.com> | 2021-06-23 02:07:48 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2021-06-23 02:07:48 +0200 |
| commit | f45fbbb6d5cff29ddfc708676ec1c2496eed3a07 (patch) | |
| tree | 5496fee9f6b10da368aa49b03612061156e42d2f /drivers/net/can/usb/mcba_usb.c | |
| parent | Merge tag 'amd-drm-next-5.14-2021-06-16' of https://gitlab.freedesktop.org/ag... (diff) | |
| parent | Linux 5.13-rc7 (diff) | |
| download | linux-f45fbbb6d5cff29ddfc708676ec1c2496eed3a07.tar.xz linux-f45fbbb6d5cff29ddfc708676ec1c2496eed3a07.zip | |
Backmerge tag 'v5.13-rc7' into drm-next
Backmerge Linux 5.13-rc7 to make some pulls from later bases apply,
and to bake in the conflicts so far.
Diffstat (limited to 'drivers/net/can/usb/mcba_usb.c')
| -rw-r--r-- | drivers/net/can/usb/mcba_usb.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 029e77dfa773..a45865bd7254 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -82,6 +82,8 @@ struct mcba_priv { bool can_ka_first_pass; bool can_speed_check; atomic_t free_ctx_cnt; + void *rxbuf[MCBA_MAX_RX_URBS]; + dma_addr_t rxbuf_dma[MCBA_MAX_RX_URBS]; }; /* CAN frame */ @@ -633,6 +635,7 @@ static int mcba_usb_start(struct mcba_priv *priv) for (i = 0; i < MCBA_MAX_RX_URBS; i++) { struct urb *urb = NULL; u8 *buf; + dma_addr_t buf_dma; /* create a URB, and a buffer for it */ urb = usb_alloc_urb(0, GFP_KERNEL); @@ -642,7 +645,7 @@ static int mcba_usb_start(struct mcba_priv *priv) } buf = usb_alloc_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, - GFP_KERNEL, &urb->transfer_dma); + GFP_KERNEL, &buf_dma); if (!buf) { netdev_err(netdev, "No memory left for USB buffer\n"); usb_free_urb(urb); @@ -661,11 +664,14 @@ static int mcba_usb_start(struct mcba_priv *priv) if (err) { usb_unanchor_urb(urb); usb_free_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, - buf, urb->transfer_dma); + buf, buf_dma); usb_free_urb(urb); break; } + priv->rxbuf[i] = buf; + priv->rxbuf_dma[i] = buf_dma; + /* Drop reference, USB core will take care of freeing it */ usb_free_urb(urb); } @@ -708,7 +714,14 @@ static int mcba_usb_open(struct net_device *netdev) static void mcba_urb_unlink(struct mcba_priv *priv) { + int i; + usb_kill_anchored_urbs(&priv->rx_submitted); + + for (i = 0; i < MCBA_MAX_RX_URBS; ++i) + usb_free_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, + priv->rxbuf[i], priv->rxbuf_dma[i]); + usb_kill_anchored_urbs(&priv->tx_submitted); } |