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Commit 958f9889 authored by Marek Vasut's avatar Marek Vasut Committed by Wolfram Sang
Browse files

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: default avatarMarek Vasut <marex@denx.de>
Signed-off-by: default avatarWolfram Sang <w.sang@pengutronix.de>
parent 963f2076

drivers/i2c/busses/i2c-mxs.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

}