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iio: adc: ads124: avoid buffer overflow

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When initializing the priv->data array starting from index 1, there is one
less element to consider than when initializing the full array.

Fixes: e717f8c6df ("iio: adc: Add the TI ads124s08 ADC code")
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Vincent Stehlé 2019-03-31 20:54:23 +02:00 • committed by Jonathan Cameron
commit 0db8aa49a9
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/ti-ads124s08.c
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@ -202,7 +202,7 @@ static int ads124s_read(struct iio_dev *indio_dev, unsigned int chan)
};
priv->data[0] = ADS124S08_CMD_RDATA;
memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data));
memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data) - 1);
ret = spi_sync_transfer(priv->spi, t, ARRAY_SIZE(t));
if (ret < 0)