i2c: mxs: Handle i2c DMA failure properly
Marek Vasut [Sun, 18 Nov 2012 05:25:07 +0000 (06:25 +0100)]
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>

drivers/i2c/busses/i2c-mxs.c

index 286ca19..0670da7 100644 (file)
@@ -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;
 }