i2c: mxs: Handle i2c DMA failure properly

Marek Vasut · Wolfram Sang · commit c35d3cfdbc8d · 2012-11-22T23:03:09.000+01:00
Properly terminate the DMA transfer in case the DMA PIO transfer
or setup fails for any reason.

Signed-off-by: Marek Vasut &lt;marex@denx.de&gt;
Signed-off-by: Wolfram Sang &lt;w.sang@pengutronix.de&gt;
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
@@ -287,12 +287,14 @@ static int mxs_i2c_dma_setup_xfer(struct i2c_adapter *adap,
 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;
 }
 
