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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /drivers/input/joystick/amijoy.c | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'drivers/input/joystick/amijoy.c')
| -rw-r--r-- | drivers/input/joystick/amijoy.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/input/joystick/amijoy.c b/drivers/input/joystick/amijoy.c new file mode 100644 index 000000000..3752dc2a2 --- /dev/null +++ b/drivers/input/joystick/amijoy.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 1998-2001 Vojtech Pavlik + */ + +/* + * Driver for Amiga joysticks for Linux/m68k + */ + +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/mutex.h> + +#include <asm/amigahw.h> +#include <asm/amigaints.h> + +MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); +MODULE_DESCRIPTION("Driver for Amiga joysticks"); +MODULE_LICENSE("GPL"); + +static int amijoy[2] = { 0, 1 }; +module_param_array_named(map, amijoy, uint, NULL, 0); +MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)"); + +static int amijoy_used; +static DEFINE_MUTEX(amijoy_mutex); +static struct input_dev *amijoy_dev[2]; +static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" }; + +static irqreturn_t amijoy_interrupt(int irq, void *dummy) +{ + int i, data = 0, button = 0; + + for (i = 0; i < 2; i++) + if (amijoy[i]) { + + switch (i) { + case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break; + case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break; + } + + input_report_key(amijoy_dev[i], BTN_TRIGGER, button); + + input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1)); + data = ~(data ^ (data << 1)); + input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1)); + + input_sync(amijoy_dev[i]); + } + return IRQ_HANDLED; +} + +static int amijoy_open(struct input_dev *dev) +{ + int err; + + err = mutex_lock_interruptible(&amijoy_mutex); + if (err) + return err; + + if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) { + printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB); + err = -EBUSY; + goto out; + } + + amijoy_used++; +out: + mutex_unlock(&amijoy_mutex); + return err; +} + +static void amijoy_close(struct input_dev *dev) +{ + mutex_lock(&amijoy_mutex); + if (!--amijoy_used) + free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt); + mutex_unlock(&amijoy_mutex); +} + +static int __init amijoy_init(void) +{ + int i, j; + int err; + + if (!MACH_IS_AMIGA) + return -ENODEV; + + for (i = 0; i < 2; i++) { + if (!amijoy[i]) + continue; + + amijoy_dev[i] = input_allocate_device(); + if (!amijoy_dev[i]) { + err = -ENOMEM; + goto fail; + } + + if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) { + input_free_device(amijoy_dev[i]); + err = -EBUSY; + goto fail; + } + + amijoy_dev[i]->name = "Amiga joystick"; + amijoy_dev[i]->phys = amijoy_phys[i]; + amijoy_dev[i]->id.bustype = BUS_AMIGA; + amijoy_dev[i]->id.vendor = 0x0001; + amijoy_dev[i]->id.product = 0x0003; + amijoy_dev[i]->id.version = 0x0100; + + amijoy_dev[i]->open = amijoy_open; + amijoy_dev[i]->close = amijoy_close; + + amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y); + amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | + BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); + for (j = 0; j < 2; j++) { + input_set_abs_params(amijoy_dev[i], ABS_X + j, + -1, 1, 0, 0); + } + + err = input_register_device(amijoy_dev[i]); + if (err) { + input_free_device(amijoy_dev[i]); + goto fail; + } + } + return 0; + + fail: while (--i >= 0) + if (amijoy[i]) { + input_unregister_device(amijoy_dev[i]); + release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2); + } + return err; +} + +static void __exit amijoy_exit(void) +{ + int i; + + for (i = 0; i < 2; i++) + if (amijoy[i]) { + input_unregister_device(amijoy_dev[i]); + release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2); + } +} + +module_init(amijoy_init); +module_exit(amijoy_exit); |
