[PATCH] CCISS: request all PCI resources
We should call pci_request_regions() to claim all resources the device
decodes. Previously, we claimed only the I/O port range.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 83bd091..45c4c31 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2638,16 +2638,6 @@
}
#endif /* CCISS_DEBUG */
-static void release_io_mem(ctlr_info_t *c)
-{
- /* if IO mem was not protected do nothing */
- if( c->io_mem_addr == 0)
- return;
- release_region(c->io_mem_addr, c->io_mem_length);
- c->io_mem_addr = 0;
- c->io_mem_length = 0;
-}
-
static int find_PCI_BAR_index(struct pci_dev *pdev,
unsigned long pci_bar_addr)
{
@@ -2762,36 +2752,18 @@
return err;
}
+ err = pci_request_regions(pdev, "cciss");
+ if (err) {
+ printk(KERN_ERR "cciss: Cannot obtain PCI resources, "
+ "aborting\n");
+ goto err_out_disable_pdev;
+ }
+
subsystem_vendor_id = pdev->subsystem_vendor;
subsystem_device_id = pdev->subsystem_device;
board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
subsystem_vendor_id);
- /* search for our IO range so we can protect it */
- for(i=0; i<DEVICE_COUNT_RESOURCE; i++)
- {
- /* is this an IO range */
- if( pci_resource_flags(pdev, i) & 0x01 ) {
- c->io_mem_addr = pci_resource_start(pdev, i);
- c->io_mem_length = pci_resource_end(pdev, i) -
- pci_resource_start(pdev, i) +1;
-#ifdef CCISS_DEBUG
- printk("IO value found base_addr[%d] %lx %lx\n", i,
- c->io_mem_addr, c->io_mem_length);
-#endif /* CCISS_DEBUG */
- /* register the IO range */
- if(!request_region( c->io_mem_addr,
- c->io_mem_length, "cciss"))
- {
- printk(KERN_WARNING "cciss I/O memory range already in use addr=%lx length=%ld\n",
- c->io_mem_addr, c->io_mem_length);
- c->io_mem_addr= 0;
- c->io_mem_length = 0;
- }
- break;
- }
- }
-
#ifdef CCISS_DEBUG
printk("command = %x\n", command);
printk("irq = %x\n", pdev->irq);
@@ -2826,7 +2798,7 @@
if (scratchpad != CCISS_FIRMWARE_READY) {
printk(KERN_WARNING "cciss: Board not ready. Timed out.\n");
err = -ENODEV;
- goto err_out_disable_pdev;
+ goto err_out_free_res;
}
/* get the address index number */
@@ -2842,9 +2814,8 @@
#endif /* CCISS_DEBUG */
if (cfg_base_addr_index == -1) {
printk(KERN_WARNING "cciss: Cannot find cfg_base_addr_index\n");
- release_io_mem(c);
err = -ENODEV;
- goto err_out_disable_pdev;
+ goto err_out_free_res;
}
cfg_offset = readl(c->vaddr + SA5_CTMEM_OFFSET);
@@ -2872,7 +2843,7 @@
" to access the Smart Array controller %08lx\n",
(unsigned long)board_id);
err = -ENODEV;
- goto err_out_disable_pdev;
+ goto err_out_free_res;
}
if ( (readb(&c->cfgtable->Signature[0]) != 'C') ||
(readb(&c->cfgtable->Signature[1]) != 'I') ||
@@ -2881,7 +2852,7 @@
{
printk("Does not appear to be a valid CISS config table\n");
err = -ENODEV;
- goto err_out_disable_pdev;
+ goto err_out_free_res;
}
#ifdef CONFIG_X86
@@ -2926,10 +2897,13 @@
printk(KERN_WARNING "cciss: unable to get board into"
" simple mode\n");
err = -ENODEV;
- goto err_out_disable_pdev;
+ goto err_out_free_res;
}
return 0;
+err_out_free_res:
+ pci_release_regions(pdev);
+
err_out_disable_pdev:
pci_disable_device(pdev);
return err;
@@ -3276,7 +3250,6 @@
clean2:
unregister_blkdev(hba[i]->major, hba[i]->devname);
clean1:
- release_io_mem(hba[i]);
hba[i]->busy_initializing = 0;
free_hba(i);
return(-1);
@@ -3322,7 +3295,6 @@
pci_disable_msi(hba[i]->pdev);
#endif /* CONFIG_PCI_MSI */
- pci_set_drvdata(pdev, NULL);
iounmap(hba[i]->vaddr);
cciss_unregister_scsi(i); /* unhook from SCSI subsystem */
unregister_blkdev(hba[i]->major, hba[i]->devname);
@@ -3349,7 +3321,9 @@
#ifdef CONFIG_CISS_SCSI_TAPE
kfree(hba[i]->scsi_rejects.complete);
#endif
- release_io_mem(hba[i]);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
free_hba(i);
}
