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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 09:03:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 09:03:47 +0200 |
| commit | bd935a7b21340e2e37f51a7f2d3188145e2fcf1f (patch) | |
| tree | ac8af4e6ea552d32839c415b2f36d416ee327ea4 /drivers/net/can/usb/ems_usb.c | |
| parent | 96ba6c6e8922e89ca4908c650072d8f8d7b39cbc (diff) | |
| parent | 36a21d51725af2ce0700c6ebcb6b9594aac658a6 (diff) | |
| download | linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.tar.gz linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.tar.bz2 linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.zip | |
Merge 5.14-rc5 into driver-core-next
We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/can/usb/ems_usb.c')
| -rw-r--r-- | drivers/net/can/usb/ems_usb.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 0a37af4a3fa4..2b5302e72435 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -255,6 +255,8 @@ struct ems_usb { unsigned int free_slots; /* remember number of available slots */ struct ems_cpc_msg active_params; /* active controller parameters */ + void *rxbuf[MAX_RX_URBS]; + dma_addr_t rxbuf_dma[MAX_RX_URBS]; }; static void ems_usb_read_interrupt_callback(struct urb *urb) @@ -587,6 +589,7 @@ static int ems_usb_start(struct ems_usb *dev) for (i = 0; i < MAX_RX_URBS; i++) { struct urb *urb = NULL; u8 *buf = NULL; + dma_addr_t buf_dma; /* create a URB, and a buffer for it */ urb = usb_alloc_urb(0, GFP_KERNEL); @@ -596,7 +599,7 @@ static int ems_usb_start(struct ems_usb *dev) } buf = usb_alloc_coherent(dev->udev, RX_BUFFER_SIZE, GFP_KERNEL, - &urb->transfer_dma); + &buf_dma); if (!buf) { netdev_err(netdev, "No memory left for USB buffer\n"); usb_free_urb(urb); @@ -604,6 +607,8 @@ static int ems_usb_start(struct ems_usb *dev) break; } + urb->transfer_dma = buf_dma; + usb_fill_bulk_urb(urb, dev->udev, usb_rcvbulkpipe(dev->udev, 2), buf, RX_BUFFER_SIZE, ems_usb_read_bulk_callback, dev); @@ -619,6 +624,9 @@ static int ems_usb_start(struct ems_usb *dev) break; } + dev->rxbuf[i] = buf; + dev->rxbuf_dma[i] = buf_dma; + /* Drop reference, USB core will take care of freeing it */ usb_free_urb(urb); } @@ -684,6 +692,10 @@ static void unlink_all_urbs(struct ems_usb *dev) usb_kill_anchored_urbs(&dev->rx_submitted); + for (i = 0; i < MAX_RX_URBS; ++i) + usb_free_coherent(dev->udev, RX_BUFFER_SIZE, + dev->rxbuf[i], dev->rxbuf_dma[i]); + usb_kill_anchored_urbs(&dev->tx_submitted); atomic_set(&dev->active_tx_urbs, 0); |