From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Michal Simek <michal.simek@xilinx.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Guenter Roeck <linux@roeck-us.net>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH v5 3/3] iio: adc: xilinx-xadc: use devm_krealloc()
Date: Wed, 15 Jul 2020 11:25:28 +0200 [thread overview]
Message-ID: <20200715092528.8136-4-brgl@bgdev.pl> (raw)
In-Reply-To: <20200715092528.8136-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Use the managed variant of krealloc() and shrink the code a bit.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/iio/adc/xilinx-xadc-core.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index d7fecab9252e4..5bdbe502e983a 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -1094,6 +1094,7 @@ MODULE_DEVICE_TABLE(of, xadc_of_match_table);
static int xadc_parse_dt(struct iio_dev *indio_dev, struct device_node *np,
unsigned int *conf)
{
+ struct device *dev = indio_dev->dev.parent;
struct xadc *xadc = iio_priv(indio_dev);
struct iio_chan_spec *channels, *chan;
struct device_node *chan_node, *child;
@@ -1138,7 +1139,8 @@ static int xadc_parse_dt(struct iio_dev *indio_dev, struct device_node *np,
*conf |= XADC_CONF0_MUX | XADC_CONF0_CHAN(ext_mux_chan);
}
- channels = kmemdup(xadc_channels, sizeof(xadc_channels), GFP_KERNEL);
+ channels = devm_kmemdup(dev, xadc_channels,
+ sizeof(xadc_channels), GFP_KERNEL);
if (!channels)
return -ENOMEM;
@@ -1174,8 +1176,9 @@ static int xadc_parse_dt(struct iio_dev *indio_dev, struct device_node *np,
of_node_put(chan_node);
indio_dev->num_channels = num_channels;
- indio_dev->channels = krealloc(channels, sizeof(*channels) *
- num_channels, GFP_KERNEL);
+ indio_dev->channels = devm_krealloc(dev, channels,
+ sizeof(*channels) * num_channels,
+ GFP_KERNEL);
/* If we can't resize the channels array, just use the original */
if (!indio_dev->channels)
indio_dev->channels = channels;
@@ -1229,14 +1232,14 @@ static int xadc_probe(struct platform_device *pdev)
ret = xadc_parse_dt(indio_dev, pdev->dev.of_node, &conf0);
if (ret)
- goto err_device_free;
+ return ret;
if (xadc->ops->flags & XADC_FLAGS_BUFFERED) {
ret = iio_triggered_buffer_setup(indio_dev,
&iio_pollfunc_store_time, &xadc_trigger_handler,
&xadc_buffer_ops);
if (ret)
- goto err_device_free;
+ return ret;
xadc->convst_trigger = xadc_alloc_trigger(indio_dev, "convst");
if (IS_ERR(xadc->convst_trigger)) {
@@ -1354,8 +1357,6 @@ static int xadc_probe(struct platform_device *pdev)
err_triggered_buffer_cleanup:
if (xadc->ops->flags & XADC_FLAGS_BUFFERED)
iio_triggered_buffer_cleanup(indio_dev);
-err_device_free:
- kfree(indio_dev->channels);
return ret;
}
@@ -1375,7 +1376,6 @@ static int xadc_remove(struct platform_device *pdev)
cancel_delayed_work_sync(&xadc->zynq_unmask_work);
clk_disable_unprepare(xadc->clk);
kfree(xadc->data);
- kfree(indio_dev->channels);
return 0;
}
--
2.26.1
next prev parent reply other threads:[~2020-07-15 9:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 9:25 [PATCH v5 0/3] devres: provide and use devm_krealloc() Bartosz Golaszewski
2020-07-15 9:25 ` [PATCH v5 1/3] devres: provide devm_krealloc() Bartosz Golaszewski
2020-07-15 9:35 ` Andy Shevchenko
2020-07-25 19:20 ` Bartosz Golaszewski
2020-07-15 9:25 ` [PATCH v5 2/3] hwmon: pmbus: use more devres helpers Bartosz Golaszewski
2020-07-15 9:25 ` Bartosz Golaszewski [this message]
2020-07-20 11:25 ` [PATCH v5 3/3] iio: adc: xilinx-xadc: use devm_krealloc() Jonathan Cameron
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