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authorJeff Garzik <jeff@garzik.org>2007-12-13 16:14:09 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-11 18:28:01 -0600
commit21e1a5f26c437591f67779a97e5cc95ebbb02e90 (patch)
tree15d957a00a1e7749ad6cb3a6566b7582cd0deabd /drivers/scsi/ips.c
parent2f277d6a719064f830211d0a0e104a37da2ac116 (diff)
downloadop-kernel-dev-21e1a5f26c437591f67779a97e5cc95ebbb02e90.zip
op-kernel-dev-21e1a5f26c437591f67779a97e5cc95ebbb02e90.tar.gz
[SCSI] ips: PCI API cleanups
* pass Scsi_Host to ips_remove_device() via pci_set_drvdata(), allowing us to eliminate the ips_ha[] search loop and call ips_release() directly. * call pci_{request,release}_regions() and eliminate individual request/release_[mem_]region() calls * call pci_disable_device(), paired with pci_enable_device() * s/0/NULL/ in a few places * check ioremap() return value Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/ips.c')
-rw-r--r--drivers/scsi/ips.c72
1 files changed, 31 insertions, 41 deletions
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 0da3dfa..5f194a8 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -702,10 +702,6 @@ ips_release(struct Scsi_Host *sh)
/* free extra memory */
ips_free(ha);
- /* Free I/O Region */
- if (ha->io_addr)
- release_region(ha->io_addr, ha->io_len);
-
/* free IRQ */
free_irq(ha->pcidev->irq, ha);
@@ -4394,8 +4390,6 @@ ips_free(ips_ha_t * ha)
ha->mem_ptr = NULL;
}
- if (ha->mem_addr)
- release_mem_region(ha->mem_addr, ha->mem_len);
ha->mem_addr = 0;
}
@@ -6880,20 +6874,14 @@ ips_register_scsi(int index)
static void __devexit
ips_remove_device(struct pci_dev *pci_dev)
{
- int i;
- struct Scsi_Host *sh;
- ips_ha_t *ha;
+ struct Scsi_Host *sh = pci_get_drvdata(pci_dev);
- for (i = 0; i < IPS_MAX_ADAPTERS; i++) {
- ha = ips_ha[i];
- if (ha) {
- if ((pci_dev->bus->number == ha->pcidev->bus->number) &&
- (pci_dev->devfn == ha->pcidev->devfn)) {
- sh = ips_sh[i];
- ips_release(sh);
- }
- }
- }
+ pci_set_drvdata(pci_dev, NULL);
+
+ ips_release(sh);
+
+ pci_release_regions(pci_dev);
+ pci_disable_device(pci_dev);
}
/****************************************************************************/
@@ -6947,12 +6935,17 @@ module_exit(ips_module_exit);
static int __devinit
ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
{
- int uninitialized_var(index);
+ int index = -1;
int rc;
METHOD_TRACE("ips_insert_device", 1);
- if (pci_enable_device(pci_dev))
- return -1;
+ rc = pci_enable_device(pci_dev);
+ if (rc)
+ return rc;
+
+ rc = pci_request_regions(pci_dev, "ips");
+ if (rc)
+ goto err_out;
rc = ips_init_phase1(pci_dev, &index);
if (rc == SUCCESS)
@@ -6968,6 +6961,19 @@ ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
ips_num_controllers++;
ips_next_controller = ips_num_controllers;
+
+ if (rc < 0) {
+ rc = -ENODEV;
+ goto err_out_regions;
+ }
+
+ pci_set_drvdata(pci_dev, ips_sh[index]);
+ return 0;
+
+err_out_regions:
+ pci_release_regions(pci_dev);
+err_out:
+ pci_disable_device(pci_dev);
return rc;
}
@@ -7000,7 +7006,7 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
METHOD_TRACE("ips_init_phase1", 1);
index = IPS_MAX_ADAPTERS;
for (j = 0; j < IPS_MAX_ADAPTERS; j++) {
- if (ips_ha[j] == 0) {
+ if (ips_ha[j] == NULL) {
index = j;
break;
}
@@ -7037,32 +7043,17 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
uint32_t base;
uint32_t offs;
- if (!request_mem_region(mem_addr, mem_len, "ips")) {
- IPS_PRINTK(KERN_WARNING, pci_dev,
- "Couldn't allocate IO Memory space %x len %d.\n",
- mem_addr, mem_len);
- return -1;
- }
-
base = mem_addr & PAGE_MASK;
offs = mem_addr - base;
ioremap_ptr = ioremap(base, PAGE_SIZE);
+ if (!ioremap_ptr)
+ return -1;
mem_ptr = ioremap_ptr + offs;
} else {
ioremap_ptr = NULL;
mem_ptr = NULL;
}
- /* setup I/O mapped area (if applicable) */
- if (io_addr) {
- if (!request_region(io_addr, io_len, "ips")) {
- IPS_PRINTK(KERN_WARNING, pci_dev,
- "Couldn't allocate IO space %x len %d.\n",
- io_addr, io_len);
- return -1;
- }
- }
-
/* found a controller */
ha = kzalloc(sizeof (ips_ha_t), GFP_KERNEL);
if (ha == NULL) {
@@ -7071,7 +7062,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
return -1;
}
-
ips_sh[index] = NULL;
ips_ha[index] = ha;
ha->active = 1;
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