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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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26
drivers/input/mouse/pc110pad.c
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@@ -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)