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Input: mice - handle errors when registering input devices

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Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-11-05 22:40:19 -05:00
parent 127278ce22
commit 721556150e
8 changed files with 154 additions and 60 deletions
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11
drivers/input/mouse/amimouse.c
View File

@ -95,10 +95,13 @@ static void amimouse_close(struct input_dev *dev)
static int __init amimouse_init(void)
{
int err;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_MOUSE))
return -ENODEV;
if (!(amimouse_dev = input_allocate_device()))
amimouse_dev = input_allocate_device();
if (!amimouse_dev)
return -ENOMEM;
amimouse_dev->name = "Amiga mouse";
@ -114,7 +117,11 @@ static int __init amimouse_init(void)
amimouse_dev->open = amimouse_open;
amimouse_dev->close = amimouse_close;
input_register_device(amimouse_dev);
err = input_register_device(amimouse_dev);
if (err) {
input_free_device(amimouse_dev);
return err;
}
return 0;
}

23
drivers/input/mouse/inport.c
View File

@ -135,6 +135,7 @@ static void inport_close(struct input_dev *dev)
static int __init inport_init(void)
{
unsigned char a, b, c;
int err;
if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
@ -145,15 +146,16 @@ static int __init inport_init(void)
b = inb(INPORT_SIGNATURE_PORT);
c = inb(INPORT_SIGNATURE_PORT);
if (a == b || a != c) {
release_region(INPORT_BASE, INPORT_EXTENT);
printk(KERN_ERR "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
return -ENODEV;
err = -ENODEV;
goto err_release_region;
}
if (!(inport_dev = input_allocate_device())) {
inport_dev = input_allocate_device();
if (!inport_dev) {
printk(KERN_ERR "inport.c: Not enough memory for input device\n");
release_region(INPORT_BASE, INPORT_EXTENT);
return -ENOMEM;
err = -ENOMEM;
goto err_release_region;
}
inport_dev->name = INPORT_NAME;
@ -174,9 +176,18 @@ static int __init inport_init(void)
outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
input_register_device(inport_dev);
err = input_register_device(inport_dev);
if (err)
goto err_free_dev;
return 0;
err_free_dev:
input_free_device(inport_dev);
err_release_region:
release_region(INPORT_BASE, INPORT_EXTENT);
return err;
}
static void __exit inport_exit(void)

24
drivers/input/mouse/logibm.c
View File

@ -124,6 +124,8 @@ static void logibm_close(struct input_dev *dev)
static int __init logibm_init(void)
{
int err;
if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
return -EBUSY;
@ -134,18 +136,19 @@ static int __init logibm_init(void)
udelay(100);
if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
release_region(LOGIBM_BASE, LOGIBM_EXTENT);
printk(KERN_ERR "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
return -ENODEV;
err = -ENODEV;
goto err_release_region;
}
outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
if (!(logibm_dev = input_allocate_device())) {
logibm_dev = input_allocate_device();
if (!logibm_dev) {
printk(KERN_ERR "logibm.c: Not enough memory for input device\n");
release_region(LOGIBM_BASE, LOGIBM_EXTENT);
return -ENOMEM;
err = -ENOMEM;
goto err_release_region;
}
logibm_dev->name = "Logitech bus mouse";
@ -162,9 +165,18 @@ static int __init logibm_init(void)
logibm_dev->open = logibm_open;
logibm_dev->close = logibm_close;
input_register_device(logibm_dev);
err = input_register_device(logibm_dev);
if (err)
goto err_free_dev;
return 0;
err_free_dev:
input_free_device(logibm_dev);
err_release_region:
release_region(LOGIBM_BASE, LOGIBM_EXTENT);
return err;
}
static void __exit logibm_exit(void)

26
drivers/input/mouse/pc110pad.c
View File

@ -108,6 +108,7 @@ static int pc110pad_open(struct input_dev *dev)
static int __init pc110pad_init(void)
{
struct pci_dev *dev;
int err;
dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
if (dev) {
@ -124,16 +125,16 @@ static int __init pc110pad_init(void)
outb(PC110PAD_OFF, pc110pad_io + 2);
if (request_irq(pc110pad_irq, pc110pad_interrupt, 0, "pc110pad", NULL)) {
release_region(pc110pad_io, 4);
printk(KERN_ERR "pc110pad: Unable to get irq %d.\n", pc110pad_irq);
return -EBUSY;
err = -EBUSY;
goto err_release_region;
}
if (!(pc110pad_dev = input_allocate_device())) {
free_irq(pc110pad_irq, NULL);
release_region(pc110pad_io, 4);
pc110pad_dev = input_allocate_device();
if (!pc110pad_dev) {
printk(KERN_ERR "pc110pad: Not enough memory.\n");
return -ENOMEM;
err = -ENOMEM;
goto err_free_irq;
}
pc110pad_dev->name = "IBM PC110 TouchPad";
@ -153,9 +154,20 @@ static int __init pc110pad_init(void)
pc110pad_dev->open = pc110pad_open;
pc110pad_dev->close = pc110pad_close;
input_register_device(pc110pad_dev);
err = input_register_device(pc110pad_dev);
if (err)
goto err_free_dev;
return 0;
err_free_dev:
input_free_device(pc110pad_dev);
err_free_irq:
free_irq(pc110pad_irq, NULL);
err_release_region:
release_region(pc110pad_io, 4);
return err;
}
static void __exit pc110pad_exit(void)

84
drivers/input/mouse/psmouse-base.c
View File

@ -1102,7 +1102,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
{
struct psmouse *psmouse, *parent = NULL;
struct input_dev *input_dev;
int retval = -ENOMEM;
int retval = 0, error = -ENOMEM;
mutex_lock(&psmouse_mutex);
@ -1118,7 +1118,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL);
input_dev = input_allocate_device();
if (!psmouse || !input_dev)
goto out;
goto err_free;
ps2_init(&psmouse->ps2dev, serio);
INIT_WORK(&psmouse->resync_work, psmouse_resync, psmouse);
@ -1129,14 +1129,13 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
serio_set_drvdata(serio, psmouse);
retval = serio_open(serio, drv);
if (retval)
goto out;
error = serio_open(serio, drv);
if (error)
goto err_clear_drvdata;
if (psmouse_probe(psmouse) < 0) {
serio_close(serio);
retval = -ENODEV;
goto out;
error = -ENODEV;
goto err_close_serio;
}
psmouse->rate = psmouse_rate;
@ -1150,30 +1149,44 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
psmouse_initialize(psmouse);
input_register_device(psmouse->dev);
error = input_register_device(psmouse->dev);
if (error)
goto err_protocol_disconnect;
if (parent && parent->pt_activate)
parent->pt_activate(parent);
sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
error = sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
if (error)
goto err_pt_deactivate;
psmouse_activate(psmouse);
retval = 0;
out:
if (retval) {
serio_set_drvdata(serio, NULL);
input_free_device(input_dev);
kfree(psmouse);
}
out:
/* If this is a pass-through port the parent needs to be re-activated */
if (parent)
psmouse_activate(parent);
mutex_unlock(&psmouse_mutex);
return retval;
err_pt_deactivate:
if (parent && parent->pt_deactivate)
parent->pt_deactivate(parent);
err_protocol_disconnect:
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
err_close_serio:
serio_close(serio);
err_clear_drvdata:
serio_set_drvdata(serio, NULL);
err_free:
input_free_device(input_dev);
kfree(psmouse);
retval = error;
goto out;
}
@ -1365,17 +1378,20 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
{
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
struct input_dev *new_dev;
const struct psmouse_protocol *proto;
struct input_dev *old_dev, *new_dev;
const struct psmouse_protocol *proto, *old_proto;
int error;
int retry = 0;
if (!(proto = psmouse_protocol_by_name(buf, count)))
proto = psmouse_protocol_by_name(buf, count);
if (!proto)
return -EINVAL;
if (psmouse->type == proto->type)
return count;
if (!(new_dev = input_allocate_device()))
new_dev = input_allocate_device();
if (!new_dev)
return -ENOMEM;
while (serio->child) {
@ -1408,11 +1424,13 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
parent->pt_deactivate(parent);
}
old_dev = psmouse->dev;
old_proto = psmouse_protocol_by_type(psmouse->type);
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
input_unregister_device(psmouse->dev);
psmouse->dev = new_dev;
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
@ -1426,7 +1444,23 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
psmouse_initialize(psmouse);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
input_register_device(psmouse->dev);
error = input_register_device(psmouse->dev);
if (error) {
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
input_free_device(new_dev);
psmouse->dev = old_dev;
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
psmouse_switch_protocol(psmouse, old_proto);
psmouse_initialize(psmouse);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
return error;
}
input_unregister_device(old_dev);
if (parent && parent->pt_activate)
parent->pt_activate(parent);

20
drivers/input/mouse/rpcmouse.c
View File

@ -66,7 +66,10 @@ static irqreturn_t rpcmouse_irq(int irq, void *dev_id)
static int __init rpcmouse_init(void)
{
if (!(rpcmouse_dev = input_allocate_device()))
int err;
rpcmouse_dev = input_allocate_device();
if (!rpcmouse_dev)
return -ENOMEM;
rpcmouse_dev->name = "Acorn RiscPC Mouse";
@ -85,13 +88,22 @@ static int __init rpcmouse_init(void)
if (request_irq(IRQ_VSYNCPULSE, rpcmouse_irq, IRQF_SHARED, "rpcmouse", rpcmouse_dev)) {
printk(KERN_ERR "rpcmouse: unable to allocate VSYNC interrupt\n");
input_free_device(rpcmouse_dev);
return -EBUSY;
err = -EBUSY;
goto err_free_dev;
}
input_register_device(rpcmouse_dev);
err = input_register_device(rpcmouse_dev);
if (err)
goto err_free_irq;
return 0;
err_free_irq:
free_irq(IRQ_VSYNCPULSE, rpcmouse_dev);
err_free_dev:
input_free_device(rpcmouse_dev);
return err;
}
static void __exit rpcmouse_exit(void)

13
drivers/input/mouse/sermouse.c
View File

@ -246,7 +246,7 @@ static int sermouse_connect(struct serio *serio, struct serio_driver *drv)
sermouse = kzalloc(sizeof(struct sermouse), GFP_KERNEL);
input_dev = input_allocate_device();
if (!sermouse || !input_dev)
goto fail;
goto fail1;
sermouse->dev = input_dev;
snprintf(sermouse->phys, sizeof(sermouse->phys), "%s/input0", serio->phys);
@ -275,14 +275,17 @@ static int sermouse_connect(struct serio *serio, struct serio_driver *drv)
err = serio_open(serio, drv);
if (err)
goto fail;
goto fail2;
input_register_device(sermouse->dev);
err = input_register_device(sermouse->dev);
if (err)
goto fail3;
return 0;
fail: serio_set_drvdata(serio, NULL);
input_free_device(input_dev);
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(sermouse);
return err;
}

13
drivers/input/mouse/vsxxxaa.c
View File

@ -497,7 +497,7 @@ vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
mouse = kzalloc (sizeof (struct vsxxxaa), GFP_KERNEL);
input_dev = input_allocate_device ();
if (!mouse || !input_dev)
goto fail;
goto fail1;
mouse->dev = input_dev;
mouse->serio = serio;
@ -527,7 +527,7 @@ vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
err = serio_open (serio, drv);
if (err)
goto fail;
goto fail2;
/*
* Request selftest. Standard packet format and differential
@ -535,12 +535,15 @@ vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
*/
serio->write (serio, 'T'); /* Test */
input_register_device (input_dev);
err = input_register_device (input_dev);
if (err)
goto fail3;
return 0;
fail: serio_set_drvdata (serio, NULL);
input_free_device (input_dev);
fail3: serio_close (serio);
fail2: serio_set_drvdata (serio, NULL);
fail1: input_free_device (input_dev);
kfree (mouse);
return err;
}