doc: Fix typo (acces_process_vm -> access_process_vm)

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index fe7afe2..5b0c083 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -544,7 +544,7 @@
 will cause the VM to retry the fault.
 
 	->access() is called when get_user_pages() fails in
-acces_process_vm(), typically used to debug a process through
+access_process_vm(), typically used to debug a process through
 /proc/pid/mem or ptrace.  This function is needed only for
 VM_IO | VM_PFNMAP VMAs.