diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-01-10 19:03:19 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-01-18 01:01:35 +0100 |
| commit | 894f3009d69c6f29f06443acbafb1c2f63271998 (patch) | |
| tree | ff3c5d90f5cbf0311c73dd759d0cee0cea9d2a12 /drivers/media/usb/ttusb-budget | |
| parent | Linux 4.15-rc4 (diff) | |
| download | linux-894f3009d69c6f29f06443acbafb1c2f63271998.tar.xz linux-894f3009d69c6f29f06443acbafb1c2f63271998.zip | |
media: ttusb-budget: Remove pci_zalloc_coherent() abuse
Switch to a plain kzalloc() instead of pci_zalloc_coherent() to allocate
memory for the USB DMA.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/media/usb/ttusb-budget')
| -rw-r--r-- | drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c index a142b9dc0feb..ea40a24947ba 100644 --- a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c +++ b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c @@ -102,7 +102,6 @@ struct ttusb { unsigned int isoc_in_pipe; void *iso_buffer; - dma_addr_t iso_dma_handle; struct urb *iso_urb[ISO_BUF_COUNT]; @@ -792,26 +791,17 @@ static void ttusb_free_iso_urbs(struct ttusb *ttusb) for (i = 0; i < ISO_BUF_COUNT; i++) usb_free_urb(ttusb->iso_urb[i]); - - pci_free_consistent(NULL, - ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF * - ISO_BUF_COUNT, ttusb->iso_buffer, - ttusb->iso_dma_handle); + kfree(ttusb->iso_buffer); } static int ttusb_alloc_iso_urbs(struct ttusb *ttusb) { int i; - ttusb->iso_buffer = pci_zalloc_consistent(NULL, - ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF * ISO_BUF_COUNT, - &ttusb->iso_dma_handle); - - if (!ttusb->iso_buffer) { - dprintk("%s: pci_alloc_consistent - not enough memory\n", - __func__); + ttusb->iso_buffer = kcalloc(FRAMES_PER_ISO_BUF * ISO_BUF_COUNT, + ISO_FRAME_SIZE, GFP_KERNEL); + if (!ttusb->iso_buffer) return -ENOMEM; - } for (i = 0; i < ISO_BUF_COUNT; i++) { struct urb *urb; |