提交 958f9889 编写于 作者: M Marek Vasut 提交者: Wolfram Sang

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: NMarek Vasut <marex@denx.de>
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
上级 963f2076
......@@ -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;
}
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册