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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Industrial I/O - generic interrupt based trigger support
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*
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* Copyright (c) 2008-2013 Jonathan Cameron
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/interrupt.h>
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#include <linux/slab.h>
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#include <linux/iio/iio.h>
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#include <linux/iio/trigger.h>
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struct iio_interrupt_trigger_info {
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unsigned int irq;
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};
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static irqreturn_t iio_interrupt_trigger_poll(int irq, void *private)
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{
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iio_trigger_poll(private);
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return IRQ_HANDLED;
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}
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static int iio_interrupt_trigger_probe(struct platform_device *pdev)
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{
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struct iio_interrupt_trigger_info *trig_info;
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struct iio_trigger *trig;
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unsigned long irqflags;
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struct resource *irq_res;
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int irq, ret = 0;
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irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
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if (irq_res == NULL)
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return -ENODEV;
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irqflags = (irq_res->flags & IRQF_TRIGGER_MASK) | IRQF_SHARED;
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irq = irq_res->start;
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trig = iio_trigger_alloc(NULL, "irqtrig%d", irq);
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if (!trig) {
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ret = -ENOMEM;
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goto error_ret;
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}
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trig_info = kzalloc_obj(*trig_info);
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if (!trig_info) {
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ret = -ENOMEM;
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goto error_free_trigger;
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}
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iio_trigger_set_drvdata(trig, trig_info);
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trig_info->irq = irq;
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ret = request_irq(irq, iio_interrupt_trigger_poll,
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irqflags, trig->name, trig);
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if (ret) {
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dev_err(&pdev->dev,
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"request IRQ-%d failed", irq);
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goto error_free_trig_info;
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}
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ret = iio_trigger_register(trig);
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if (ret)
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goto error_release_irq;
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platform_set_drvdata(pdev, trig);
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return 0;
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/* First clean up the partly allocated trigger */
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error_release_irq:
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free_irq(irq, trig);
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error_free_trig_info:
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kfree(trig_info);
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error_free_trigger:
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iio_trigger_free(trig);
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error_ret:
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return ret;
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}
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static void iio_interrupt_trigger_remove(struct platform_device *pdev)
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{
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struct iio_trigger *trig;
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struct iio_interrupt_trigger_info *trig_info;
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trig = platform_get_drvdata(pdev);
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trig_info = iio_trigger_get_drvdata(trig);
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iio_trigger_unregister(trig);
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free_irq(trig_info->irq, trig);
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kfree(trig_info);
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iio_trigger_free(trig);
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}
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static struct platform_driver iio_interrupt_trigger_driver = {
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.probe = iio_interrupt_trigger_probe,
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.remove = iio_interrupt_trigger_remove,
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.driver = {
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.name = "iio_interrupt_trigger",
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},
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};
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module_platform_driver(iio_interrupt_trigger_driver);
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MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
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MODULE_DESCRIPTION("Interrupt trigger for the iio subsystem");
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MODULE_LICENSE("GPL v2");
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