linux-kernel - [PATCH 4.4 006/210] mmc: sh_mmcif: Correct TX DMA channel allocation

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Message-Id: <20160410183526.876420469@linuxfoundation.org>
Date:	Sun, 10 Apr 2016 11:33:47 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Chris Paterson <chris.paterson2@...esas.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Arnd Bergmann <arnd@...db.de>,
	Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.4 006/210] mmc: sh_mmcif: Correct TX DMA channel allocation

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chris Paterson <chris.paterson2@...esas.com>

commit a32ef81c9889c9554a3c4b465c4ee7b2d26c6b10 upstream.

Commit 27cbd7e815a8 ("mmc: sh_mmcif: rework dma channel handling")
introduced a typo causing the TX DMA channel allocation to be overwritten
by the requested RX DMA channel.

Fixes: 27cbd7e815a8 ("mmc: sh_mmcif: rework dma channel handling")
Signed-off-by: Chris Paterson <chris.paterson2@...esas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Acked-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mmc/host/sh_mmcif.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -445,7 +445,7 @@ static void sh_mmcif_request_dma(struct
 							pdata->slave_id_rx);
 	} else {
 		host->chan_tx = dma_request_slave_channel(dev, "tx");
-		host->chan_tx = dma_request_slave_channel(dev, "rx");
+		host->chan_rx = dma_request_slave_channel(dev, "rx");
 	}
 	dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx,
 		host->chan_rx);