From: Marek Vasut <marex@denx.de>
Date: Sun, 18 Nov 2012 05:25:07 +0000 (+0100)
Subject: i2c: mxs: Handle i2c DMA failure properly
X-Git-Tag: v3.8-rc1~54^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c35d3cfdbc8d4fb4358a5bc97a334dbdb86e3d69;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

i2c: mxs: Handle i2c DMA failure properly

Properly terminate the DMA transfer in case the DMA PIO transfer
or setup fails for any reason.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
---

diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 286ca19..0670da7 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -287,12 +287,14 @@ read_init_dma_fail:
 select_init_dma_fail:
 	dma_unmap_sg(i2c->dev, &i2c->sg_io[0], 1, DMA_TO_DEVICE);
 select_init_pio_fail:
+	dmaengine_terminate_all(i2c->dmach);
 	return -EINVAL;
 
 /* Write failpath. */
 write_init_dma_fail:
 	dma_unmap_sg(i2c->dev, i2c->sg_io, 2, DMA_TO_DEVICE);
 write_init_pio_fail:
+	dmaengine_terminate_all(i2c->dmach);
 	return -EINVAL;
 }