[MTD] Switch to pci_get_device and do ref counting

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index 2c0149708739..a03a8a79e5c5 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -674,7 +674,7 @@ static int __init init_pmc551(void)
          */
         for( count = 0; count < MAX_MTD_DEVICES; count++ ) {
 
-                if ((PCI_Device = pci_find_device(PCI_VENDOR_ID_V3_SEMI,
+                if ((PCI_Device = pci_get_device(PCI_VENDOR_ID_V3_SEMI,
                                                   PCI_DEVICE_ID_V3_SEMI_V370PDC,
                                                   PCI_Device ) ) == NULL) {
                         break;
@@ -783,6 +783,10 @@ static int __init init_pmc551(void)
                         kfree(mtd);
                         break;
                 }
+
+                /* Keep a reference as the add_mtd_device worked */
+                pci_dev_get(PCI_Device);
+
                 printk(KERN_NOTICE "Registered pmc551 memory device.\n");
                 printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n",
                        priv->asize>>20,
@@ -797,6 +801,10 @@ static int __init init_pmc551(void)
                 found++;
         }
 
+        /* Exited early, reference left over */
+        if (PCI_Device)
+                pci_dev_put(PCI_Device);
+
         if( !pmc551list ) {
                 printk(KERN_NOTICE "pmc551: not detected\n");
                 return -ENODEV;
@@ -824,6 +832,7 @@ static void __exit cleanup_pmc551(void)
                                 priv->asize>>20, priv->start);
                         iounmap (priv->start);
                 }
+                pci_dev_put(priv->dev);
 
                 kfree (mtd->priv);
                 del_mtd_device (mtd);