diff options
Diffstat (limited to 'drivers/ide/ide-pnp.c')
| -rw-r--r-- | drivers/ide/ide-pnp.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index 8a178a55a02..10c20e9a578 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -18,6 +18,8 @@ #include <linux/pnp.h> #include <linux/ide.h> +#define DRV_NAME "ide-pnp" + /* Add your devices here :)) */ static struct pnp_device_id idepnp_devices[] = { /* Generic ESDI/IDE/ATA compatible hard disk controller */ @@ -29,13 +31,29 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { hw_regs_t hw; ide_hwif_t *hwif; + unsigned long base, ctl; if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) return -1; + base = pnp_port_start(dev, 0); + ctl = pnp_port_start(dev, 1); + + if (!request_region(base, 8, DRV_NAME)) { + printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", + DRV_NAME, base, base + 7); + return -EBUSY; + } + + if (!request_region(ctl, 1, DRV_NAME)) { + printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", + DRV_NAME, ctl); + release_region(base, 8); + return -EBUSY; + } + memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, pnp_port_start(dev, 0), - pnp_port_start(dev, 1)); + ide_std_init_ports(&hw, base, ctl); hw.irq = pnp_irq(dev, 0); hwif = ide_find_port(); @@ -54,6 +72,9 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) return 0; } + release_region(ctl, 1); + release_region(base, 8); + return -1; } @@ -65,6 +86,9 @@ static void idepnp_remove(struct pnp_dev *dev) ide_unregister(hwif->index); else printk(KERN_ERR "idepnp: Unable to remove device, please report.\n"); + + release_region(pnp_port_start(dev, 1), 1); + release_region(pnp_port_start(dev, 0), 8); } static struct pnp_driver idepnp_driver = { |