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iio: adc: at91-sama5d2: Replace 0 with NULL when clearing some pointers.

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Cleans up the sparse warning:

CHECK   drivers/iio/adc/at91-sama5d2_adc.c
drivers/iio/adc/at91-sama5d2_adc.c:1486:31: warning: Using plain integer as NULL pointer
drivers/iio/adc/at91-sama5d2_adc.c:1509:31: warning: Using plain integer as NULL pointer

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Eugen Hristev <eugen.hristev@microchip.com>
This commit is contained in:
Jonathan Cameron 2019-10-13 09:57:23 +01:00
parent c5d550fb6e
commit 5617f22b23
1 changed files with 2 additions and 2 deletions
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4
drivers/iio/adc/at91-sama5d2_adc.c
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@ -1483,7 +1483,7 @@ dma_free_area:
st->dma_st.rx_buf, st->dma_st.rx_dma_buf);
dma_chan_disable:
dma_release_channel(st->dma_st.dma_chan);
st->dma_st.dma_chan = 0;
st->dma_st.dma_chan = NULL;
dma_exit:
dev_info(&pdev->dev, "continuing without DMA support\n");
}
@ -1506,7 +1506,7 @@ static void at91_adc_dma_disable(struct platform_device *pdev)
dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE,
st->dma_st.rx_buf, st->dma_st.rx_dma_buf);
dma_release_channel(st->dma_st.dma_chan);
st->dma_st.dma_chan = 0;
st->dma_st.dma_chan = NULL;
dev_info(&pdev->dev, "continuing without DMA support\n");
}