[SCSI] hpsa: factor out the code to reset controllers on driver load

for kdump support

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 44f81a0..b2f4785 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3571,33 +3571,44 @@ static void __devinit hpsa_hba_inquiry(struct ctlr_info *h)
        }
 }
 
+static __devinit int hpsa_init_reset_devices(struct pci_dev *pdev)
+{
+       int i;
+
+       if (!reset_devices)
+               return 0;
+
+       /* Reset the controller with a PCI power-cycle */
+       if (hpsa_hard_reset_controller(pdev) || hpsa_reset_msi(pdev))
+               return -ENODEV;
+
+       /* Some devices (notably the HP Smart Array 5i Controller)
+          need a little pause here */
+       msleep(HPSA_POST_RESET_PAUSE_MSECS);
+
+       /* Now try to get the controller to respond to a no-op */
+       for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) {
+               if (hpsa_noop(pdev) == 0)
+                       break;
+               else
+                       dev_warn(&pdev->dev, "no-op failed%s\n",
+                                       (i < 11 ? "; re-trying" : ""));
+       }
+       return 0;
+}
+
 static int __devinit hpsa_init_one(struct pci_dev *pdev,
                                    const struct pci_device_id *ent)
 {
-       int i, rc;
-       int dac;
+       int dac, rc;
        struct ctlr_info *h;
 
        if (number_of_controllers == 0)
                printk(KERN_INFO DRIVER_NAME "\n");
-       if (reset_devices) {
-               /* Reset the controller with a PCI power-cycle */
-               if (hpsa_hard_reset_controller(pdev) || hpsa_reset_msi(pdev))
-                       return -ENODEV;
-
-               /* Some devices (notably the HP Smart Array 5i Controller)
-                  need a little pause here */
-               msleep(HPSA_POST_RESET_PAUSE_MSECS);
 
-               /* Now try to get the controller to respond to a no-op */
-               for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) {
-                       if (hpsa_noop(pdev) == 0)
-                               break;
-                       else
-                               dev_warn(&pdev->dev, "no-op failed%s\n",
-                                               (i < 11 ? "; re-trying" : ""));
-               }
-       }
+       rc = hpsa_init_reset_devices(pdev);
+       if (rc)
+               return rc;
 
        /* Command structures must be aligned on a 32-byte boundary because
         * the 5 lower bits of the address are used by the hardware. and by