[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>
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index 2c01497..a03a8a79 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -674,7 +674,7 @@
*/
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 @@
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 @@
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 @@
priv->asize>>20, priv->start);
iounmap (priv->start);
}
+ pci_dev_put(priv->dev);
kfree (mtd->priv);
del_mtd_device (mtd);