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Commit 9a12d097 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Greg Kroah-Hartman
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usb: renesas_usbhs: care buff alignment when dma handler 



Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 8d48fdf6

drivers/usb/renesas_usbhs/fifo.c

+6 −0
Original line number Diff line number Diff line
@@ -642,6 +642,9 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) 
	if (len % 4) /* 32bit alignment */

		goto usbhsf_pio_prepare_push;



	if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */

		goto usbhsf_pio_prepare_push;



	/* get enable DMA fifo */

	fifo = usbhsf_get_dma_fifo(priv, pkt);

	if (!fifo)
@@ -716,6 +719,9 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) 
	if (!fifo)

		goto usbhsf_pio_prepare_pop;



	if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */

		goto usbhsf_pio_prepare_pop;



	ret = usbhsf_fifo_select(pipe, fifo, 0);

	if (ret < 0)

		goto usbhsf_pio_prepare_pop;