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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>
166 lines
3.5 KiB
C
166 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Richard Zidlicky <Richard.Zidlicky@stud.informatik.uni-erlangen.de>
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*/
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/*
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* Q40 PS/2 keyboard controller driver for Linux/m68k
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*/
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#include <linux/module.h>
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#include <linux/serio.h>
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#include <linux/interrupt.h>
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#include <linux/err.h>
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#include <linux/bitops.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <asm/io.h>
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#include <linux/uaccess.h>
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#include <asm/q40_master.h>
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#include <asm/irq.h>
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#include <asm/q40ints.h>
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#define DRV_NAME "q40kbd"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:" DRV_NAME);
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struct q40kbd {
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struct serio *port;
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spinlock_t lock;
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};
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static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
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{
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struct q40kbd *q40kbd = dev_id;
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guard(spinlock_irqsave)(&q40kbd->lock);
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if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
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serio_interrupt(q40kbd->port, master_inb(KEYCODE_REG), 0);
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master_outb(-1, KEYBOARD_UNLOCK_REG);
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return IRQ_HANDLED;
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}
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/*
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* q40kbd_flush() flushes all data that may be in the keyboard buffers
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*/
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static void q40kbd_flush(struct q40kbd *q40kbd)
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{
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int maxread = 100;
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guard(spinlock_irqsave)(&q40kbd->lock);
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while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
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master_inb(KEYCODE_REG);
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}
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static void q40kbd_stop(void)
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{
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master_outb(0, KEY_IRQ_ENABLE_REG);
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master_outb(-1, KEYBOARD_UNLOCK_REG);
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}
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/*
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* q40kbd_open() is called when a port is open by the higher layer.
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* It allocates the interrupt and enables in in the chip.
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*/
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static int q40kbd_open(struct serio *port)
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{
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struct q40kbd *q40kbd = port->port_data;
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q40kbd_flush(q40kbd);
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/* off we go */
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master_outb(-1, KEYBOARD_UNLOCK_REG);
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master_outb(1, KEY_IRQ_ENABLE_REG);
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return 0;
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}
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static void q40kbd_close(struct serio *port)
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{
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struct q40kbd *q40kbd = port->port_data;
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q40kbd_stop();
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q40kbd_flush(q40kbd);
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}
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static int q40kbd_probe(struct platform_device *pdev)
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{
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struct q40kbd *q40kbd;
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struct serio *port;
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int error;
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q40kbd = kzalloc_obj(*q40kbd);
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port = kzalloc_obj(*port);
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if (!q40kbd || !port) {
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error = -ENOMEM;
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goto err_free_mem;
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}
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q40kbd->port = port;
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spin_lock_init(&q40kbd->lock);
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port->id.type = SERIO_8042;
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port->open = q40kbd_open;
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port->close = q40kbd_close;
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port->port_data = q40kbd;
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port->dev.parent = &pdev->dev;
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strscpy(port->name, "Q40 Kbd Port", sizeof(port->name));
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strscpy(port->phys, "Q40", sizeof(port->phys));
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q40kbd_stop();
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error = request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0,
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DRV_NAME, q40kbd);
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if (error) {
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dev_err(&pdev->dev, "Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
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goto err_free_mem;
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}
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serio_register_port(q40kbd->port);
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platform_set_drvdata(pdev, q40kbd);
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printk(KERN_INFO "serio: Q40 kbd registered\n");
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return 0;
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err_free_mem:
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kfree(port);
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kfree(q40kbd);
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return error;
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}
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static void q40kbd_remove(struct platform_device *pdev)
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{
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struct q40kbd *q40kbd = platform_get_drvdata(pdev);
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/*
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* q40kbd_close() will be called as part of unregistering
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* and will ensure that IRQ is turned off, so it is safe
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* to unregister port first and free IRQ later.
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*/
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serio_unregister_port(q40kbd->port);
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free_irq(Q40_IRQ_KEYBOARD, q40kbd);
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kfree(q40kbd);
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}
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static struct platform_driver q40kbd_driver = {
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.driver = {
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.name = "q40kbd",
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},
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.remove = q40kbd_remove,
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};
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module_platform_driver_probe(q40kbd_driver, q40kbd_probe);
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