ide-generic: no need to probe all ports at once

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

1 files changed, 12 insertions, 35 deletions

diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c
index 0a3cb0c33ae..3104dc8d5b6 100644
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -137,10 +137,9 @@ static void ide_generic_check_pci_legacy_iobases(int *primary, int *secondary)
 
 static int __init ide_generic_init(void)
 {
-        hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS];
-        struct ide_host *host;
+        hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
         unsigned long io_addr;
-        int i, rc, primary = 0, secondary = 0;
+        int i, rc = 0, primary = 0, secondary = 0;
 
 #ifdef CONFIG_MIPS
         if (!ide_probe_legacy())
@@ -161,13 +160,9 @@ static int __init ide_generic_init(void)
                 printk(KERN_INFO DRV_NAME ": enforcing probing of I/O ports "
                         "upon user request\n");
 
-        memset(hws, 0, sizeof(hw_regs_t *) * MAX_HWIFS);
-
         for (i = 0; i < ARRAY_SIZE(legacy_bases); i++) {
                 io_addr = legacy_bases[i];
 
-                hws[i] = NULL;
-
                 if ((probe_mask & (1 << i)) && io_addr) {
                         if (!request_region(io_addr, 8, DRV_NAME)) {
                                 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX "
@@ -184,45 +179,27 @@ static int __init ide_generic_init(void)
                                 continue;
                         }
 
-                        memset(&hw[i], 0, sizeof(hw[i]));
-                        ide_std_init_ports(&hw[i], io_addr, io_addr + 0x206);
+                        memset(&hw, 0, sizeof(hw));
+                        ide_std_init_ports(&hw, io_addr, io_addr + 0x206);
 #ifdef CONFIG_IA64
-                        hw[i].irq = isa_irq_to_vector(legacy_irqs[i]);
+                        hw.irq = isa_irq_to_vector(legacy_irqs[i]);
 #else
-                        hw[i].irq = legacy_irqs[i];
+                        hw.irq = legacy_irqs[i];
 #endif
-                        hw[i].chipset = ide_generic;
+                        hw.chipset = ide_generic;
 
-                        hws[i] = &hw[i];
+                        rc = ide_host_add(NULL, hws, NULL);
+                        if (rc) {
+                                release_region(io_addr + 0x206, 1);
+                                release_region(io_addr, 8);
+                        }
                 }
         }
 
-        host = ide_host_alloc_all(NULL, hws);
-        if (host == NULL) {
-                rc = -ENOMEM;
-                goto err;
-        }
-
-        rc = ide_host_register(host, NULL, hws);
-        if (rc)
-                goto err_free;
-
         if (ide_generic_sysfs_init())
                 printk(KERN_ERR DRV_NAME ": failed to create ide_generic "
                                          "class\n");
 
-        return 0;
-err_free:
-        ide_host_free(host);
-err:
-        for (i = 0; i < MAX_HWIFS; i++) {
-                if (hws[i] == NULL)
-                        continue;
-
-                io_addr = hws[i]->io_ports.data_addr;
-                release_region(io_addr + 0x206, 1);
-                release_region(io_addr, 8);
-        }
         return rc;
 }