[SCSI] Switch fdomain to the pci_get API

Doesn't make the hardware hot pluggable but does ensure the driver won't
crash when another device is hot-unplugged at the wrong moment. Soon I
propose to deprecate pci_find_device() and some of its friends.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index 41b05fc45380807b897eae325f2429b133303e66..2a964240cf4c335f22d328682c722c5ae50a6fae 100644 (file)
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -387,6 +387,7 @@ static void __iomem *    bios_mem;
 static int               bios_major;
 static int               bios_minor;
 static int               PCI_bus;
+static struct pci_dev  *PCI_dev;
 static int               Quantum;      /* Quantum board variant */
 static int               interrupt_level;
 static volatile int      in_command;
@@ -812,9 +813,10 @@ static int fdomain_pci_bios_detect( int *irq, int *iobase, struct pci_dev **ret_
           PCI_DEVICE_ID_FD_36C70 );
 #endif 
 
-   if ((pdev = pci_find_device(PCI_VENDOR_ID_FD, PCI_DEVICE_ID_FD_36C70, pdev)) == NULL)
+   if ((pdev = pci_get_device(PCI_VENDOR_ID_FD, PCI_DEVICE_ID_FD_36C70, pdev)) == NULL)
                return 0;
-   if (pci_enable_device(pdev)) return 0;
+   if (pci_enable_device(pdev))
+       goto fail;
        
 #if DEBUG_DETECT
    printk( "scsi: <fdomain> TMC-3260 detect:"
@@ -831,7 +833,7 @@ static int fdomain_pci_bios_detect( int *irq, int *iobase, struct pci_dev **ret_
    pci_irq = pdev->irq;
 
    if (!request_region( pci_base, 0x10, "fdomain" ))
-       return 0;
+       goto fail;
 
    /* Now we have the I/O base address and interrupt from the PCI
       configuration registers. */
@@ -848,17 +850,22 @@ static int fdomain_pci_bios_detect( int *irq, int *iobase, struct pci_dev **ret_
    if (!fdomain_is_valid_port(pci_base)) {
       printk(KERN_ERR "scsi: <fdomain> PCI card detected, but driver not loaded (invalid port)\n" );
       release_region(pci_base, 0x10);
-      return 0;
+      goto fail;
    }
 
                                /* Fill in a few global variables.  Ugh. */
    bios_major = bios_minor = -1;
    PCI_bus    = 1;
+   PCI_dev    = pdev;
    Quantum    = 0;
    bios_base  = 0;
    
    return 1;
+fail:
+   pci_dev_put(pdev);
+   return 0;
 }
+
 #endif
 
 struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt )
@@ -909,8 +916,7 @@ struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt )
       if (setup_called) {
         printk(KERN_ERR "scsi: <fdomain> Bad LILO/INSMOD parameters?\n");
       }
-      release_region(port_base, 0x10);
-      return NULL;
+      goto fail;
    }
 
    if (this_id) {
@@ -942,8 +948,7 @@ struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt )
    /* Log IRQ with kernel */   
    if (!interrupt_level) {
       printk(KERN_ERR "scsi: <fdomain> Card Detected, but driver not loaded (no IRQ)\n" );
-      release_region(port_base, 0x10);
-      return NULL;
+      goto fail;
    } else {
       /* Register the IRQ with the kernel */
 
@@ -964,11 +969,14 @@ struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt )
            printk(KERN_ERR "                Send mail to faith@acm.org\n" );
         }
         printk(KERN_ERR "scsi: <fdomain> Detected, but driver not loaded (IRQ)\n" );
-         release_region(port_base, 0x10);
-        return NULL;
+        goto fail;
       }
    }
    return shpnt;
+fail:
+   pci_dev_put(pdev);
+   release_region(port_base, 0x10);
+   return NULL;
 }
 
 static int fdomain_16x0_detect(struct scsi_host_template *tpnt)
@@ -1714,6 +1722,8 @@ static int fdomain_16x0_release(struct Scsi_Host *shpnt)
                free_irq(shpnt->irq, shpnt);
        if (shpnt->io_port && shpnt->n_io_port)
                release_region(shpnt->io_port, shpnt->n_io_port);
+       if (PCI_bus)
+               pci_dev_put(PCI_dev);
        return 0;
 }