--- firegl_public.c.orig	2012-10-28 02:28:29.309860811 +0300
+++ firegl_public.c	2012-10-28 02:38:39.812185759 +0300
@@ -2130,6 +2130,9 @@
 
 int ATI_API_CALL KCL_MEM_ReleaseLinearAddrInterval(unsigned long addr, unsigned long len)
 {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)
+    return vm_munmap(addr, len);
+#else
     int retcode = 0;
 
     down_write(&current->mm->mmap_sem);
@@ -2145,6 +2148,7 @@
 #endif                        
     up_write(&current->mm->mmap_sem);
     return retcode;
+#endif
 }
 
 #if defined(__i386__)