From 2f08cad21366697711a8f0d2f19757d99cc0e5b1 Mon Sep 17 00:00:00 2001 From: Cosmin Tanislav Date: Fri, 14 Oct 2022 15:37:22 +0300 Subject: [PATCH] iio: temperature: ltc2983: allocate iio channels once commit 4132f19173211856d35180958d2754f5c56d520a upstream. Currently, every time the device wakes up from sleep, the iio_chan array is reallocated, leaking the previous one until the device is removed (basically never). Move the allocation to the probe function to avoid this. Signed-off-by: Cosmin Tanislav Fixes: f110f3188e563 ("iio: temperature: Add support for LTC2983") Cc: Link: https://lore.kernel.org/r/20221014123724.1401011-2-demonsingur@gmail.com Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/temperature/ltc2983.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c index 3b4a0e60e605..8306daa77908 100644 --- a/drivers/iio/temperature/ltc2983.c +++ b/drivers/iio/temperature/ltc2983.c @@ -1376,13 +1376,6 @@ static int ltc2983_setup(struct ltc2983_data *st, bool assign_iio) return ret; } - st->iio_chan = devm_kzalloc(&st->spi->dev, - st->iio_channels * sizeof(*st->iio_chan), - GFP_KERNEL); - - if (!st->iio_chan) - return -ENOMEM; - ret = regmap_update_bits(st->regmap, LTC2983_GLOBAL_CONFIG_REG, LTC2983_NOTCH_FREQ_MASK, LTC2983_NOTCH_FREQ(st->filter_notch_freq)); @@ -1494,6 +1487,12 @@ static int ltc2983_probe(struct spi_device *spi) if (ret) return ret; + st->iio_chan = devm_kzalloc(&spi->dev, + st->iio_channels * sizeof(*st->iio_chan), + GFP_KERNEL); + if (!st->iio_chan) + return -ENOMEM; + ret = ltc2983_setup(st, true); if (ret) return ret; -- 2.34.1