diff --git a/Device3Dfx/3dfx_driver.c b/Device3Dfx/3dfx_driver.c
index 68e4965..c1f6786 100644
--- a/Device3Dfx/3dfx_driver.c
+++ b/Device3Dfx/3dfx_driver.c
@@ -146,6 +146,7 @@
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,73)
 #define pci_get_device pci_find_device
+#define pci_dev_put(dev)
 #endif
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
@@ -670,6 +671,7 @@ static int setmtrr_3dfx(void)
 			pci_write_config_byte(dev, 0x82, dlc);
 			printk("3dfx: PIIX3: Enabling Passive Release\n");
 		}
+		pci_dev_put(dev);
 	}
 
 	/*
diff --git a/Device3Dfx/ChangeLog b/Device3Dfx/ChangeLog
index 246903f..52071e8 100644
--- a/Device3Dfx/ChangeLog
+++ b/Device3Dfx/ChangeLog
@@ -1,3 +1,9 @@
+2008-06-24  Guillem Jover  <guillem@hadrons.org>
+
+	* 3dfx_driver.c (pci_dev_put): Define to nothing on kernels < 2.5.73.
+	(setmtrr_3dfx): Call pci_dev_put to release the refcount on the
+	Intel 82441FX PCI device when done with it.
+
 2008-06-22  Guillem Jover  <guillem@hadrons.org>
 
 	* 3dfx_driver.c (id_table_3dfx): Terminate the list with an empty