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Date: Thu, 22 Oct 2015 15:41:26 +0900 From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> To: <gregkh@...uxfoundation.org>, <jslaby@...e.com>, <linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org> CC: <linux-sh@...r.kernel.org>, Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> Subject: [PATCH] serial: sh-sci: Fix length of scatterlist This patch fixes an issue that the "length" of scatterlist should be set using sg_dma_len(). Otherwise, a dmaengine driver cannot work correctly if CONFIG_NEED_SG_DMA_LENGTH=y. Fixes: 7b39d90184 (serial: sh-sci: Fix NULL pointer dereference if HIGHMEM is enabled) Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> --- Changes from v1: - Fix using implicit declaration of function "sg_dma_length". drivers/tty/serial/sh-sci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 960e50a..51c7507 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1437,7 +1437,7 @@ static void sci_request_dma(struct uart_port *port) sg_init_table(sg, 1); s->rx_buf[i] = buf; sg_dma_address(sg) = dma; - sg->length = s->buf_len_rx; + sg_dma_len(sg) = s->buf_len_rx; buf += s->buf_len_rx; dma += s->buf_len_rx; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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