ide-generic: manage I/O resources in driver

* Tell IDE layer to not manage resources by setting hwif->mmio flag.

* Use {request,release}_region() for resources management.

* Use driver name for resources management.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 19 insertions, 2 deletions

diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c
index 19f63e393d18..12de09aaef09 100644
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -94,7 +94,24 @@ static int __init ide_generic_init(void)
                 unsigned long io_addr = ide_default_io_base(i);
                 hw_regs_t hw;
 
+                idx[i] = 0xff;
+
                 if (io_addr) {
+                        if (!request_region(io_addr, 8, DRV_NAME)) {
+                                printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX "
+                                                "not free.\n",
+                                                DRV_NAME, io_addr, io_addr + 7);
+                                continue;
+                        }
+
+                        if (!request_region(io_addr + 0x206, 1, DRV_NAME)) {
+                                printk(KERN_ERR "%s: I/O resource 0x%lX "
+                                                "not free.\n",
+                                                DRV_NAME, io_addr + 0x206);
+                                release_region(io_addr, 8);
+                                continue;
+                        }
+
                         /*
                          * Skip probing if the corresponding
                          * slot is already occupied.
@@ -109,10 +126,10 @@ static int __init ide_generic_init(void)
                         ide_std_init_ports(&hw, io_addr, io_addr + 0x206);
                         hw.irq = ide_default_irq(io_addr);
                         ide_init_port_hw(hwif, &hw);
+                        hwif->mmio = 1;
 
                         idx[i] = i;
-                } else
-                        idx[i] = 0xff;
+                }
         }
 
         ide_device_add_all(idx, NULL);