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Date: Mon, 18 Sep 2017 18:24:15 +0200 From: Fabrice Gasnier <fabrice.gasnier@...com> To: <jic23@...nel.org> CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>, <fabrice.gasnier@...com>, <benjamin.gaignard@...com>, <benjamin.gaignard@...aro.org>, <linux-iio@...r.kernel.org>, <lars@...afoo.de>, <knaack.h@....de>, <pmeerw@...erw.net> Subject: [PATCH] iio: adc: stm32: fix bad error check on max_channels Fix a bad error check when counting 'st,adc-channels' array elements. This is seen when all channels are in use simultaneously. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com> --- drivers/iio/adc/stm32-adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index e3c15f8..4df32cf 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -1666,7 +1666,7 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) num_channels = of_property_count_u32_elems(node, "st,adc-channels"); if (num_channels < 0 || - num_channels >= adc_info->max_channels) { + num_channels > adc_info->max_channels) { dev_err(&indio_dev->dev, "Bad st,adc-channels?\n"); return num_channels < 0 ? num_channels : -EINVAL; } -- 1.9.1
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