[IA64] Fix missing iounmap in error path in cyclone.c

By moving the iounmap up above the test, it takes place whether the test
succeeds or fails.

Signed-off-by: Julia Lawall <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/kernel/cyclone.c

···
 		return -ENODEV;
 	}
 	base = readq(reg);
+	iounmap(reg);
 	if(!base){
 		printk(KERN_ERR "Summit chipset: Could not find valid CBAR"
 				" value.\n");
 		use_cyclone = 0;
 		return -ENODEV;
 	}
-	iounmap(reg);
 
 	/* setup PMCC */
 	offset = (base + CYCLONE_PMCC_OFFSET);