cciss: factor out cciss_find_memory_BAR()

cciss: factor out cciss_find_memory_BAR()

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index bb22a80d448f1ed96732fe523d1edc7d29659c02..9c9c79c0aa98ec30c020de6fef56d536461b4d03 100644 (file)
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4009,6 +4009,23 @@ static inline bool cciss_board_disabled(ctlr_info_t *h)
        return ((command & PCI_COMMAND_MEMORY) == 0);
 }
 
+static int __devinit cciss_pci_find_memory_BAR(struct pci_dev *pdev,
+       unsigned long *memory_bar)
+{
+       int i;
+
+       for (i = 0; i < DEVICE_COUNT_RESOURCE; i++)
+               if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
+                       /* addressing mode bits already removed */
+                       *memory_bar = pci_resource_start(pdev, i);
+                       dev_dbg(&pdev->dev, "memory BAR = %lx\n",
+                               *memory_bar);
+                       return 0;
+               }
+       dev_warn(&pdev->dev, "no memory BAR found\n");
+       return -ENODEV;
+}
+
 static int __devinit cciss_pci_init(ctlr_info_t *c)
 {
        __u32 scratchpad = 0;
@@ -4052,25 +4069,9 @@ static int __devinit cciss_pci_init(ctlr_info_t *c)
  * else we use the IO-APIC interrupt assigned to us by system ROM.
  */
        cciss_interrupt_mode(c);
-
-       /* find the memory BAR */
-       for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
-               if (pci_resource_flags(c->pdev, i) & IORESOURCE_MEM)
-                       break;
-       }
-       if (i == DEVICE_COUNT_RESOURCE) {
-               printk(KERN_WARNING "cciss: No memory BAR found\n");
-               err = -ENODEV;
+       err = cciss_pci_find_memory_BAR(c->pdev, &c->paddr);
+       if (err)
                goto err_out_free_res;
-       }
-
-       c->paddr = pci_resource_start(c->pdev, i); /* addressing mode bits
-                                                * already removed
-                                                */
-
-#ifdef CCISS_DEBUG
-       printk("address 0 = %lx\n", c->paddr);
-#endif                         /* CCISS_DEBUG */
        c->vaddr = remap_pci_mem(c->paddr, 0x250);
 
        /* Wait for the board to become ready.  (PCI hotplug needs this.)