usb_dmac_desc_alloc 316 drivers/dma/sh/usb-dmac.c if (!usb_dmac_desc_alloc(chan, sg_len, gfp)) { usb_dmac_desc_alloc 387 drivers/dma/sh/usb-dmac.c ret = usb_dmac_desc_alloc(uchan, USB_DMAC_INITIAL_NR_SG,