[PATCH] uml: Removes dead code in trap_kern.c

That code comes from the out_of_memory section; in 2.4 it was correct to put
it for "default:", since it was called when handle_mm_fault() return value was
!= 0, 1, 2, i.e.  it was 3, OOM (but the i386 code put it out of line, for
better performance).  Here, instead, the OOM case is handled on its own, so if
handle_mm_fault() != from the listed cases we must BUG().
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/kernel/trap_kern.c

@@ -74,13 +74,7 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 			err = -ENOMEM;
 			goto out_of_memory;
 		default:
-			if (current->pid == 1) {
-				up_read(&mm->mmap_sem);
-				yield();
-				down_read(&mm->mmap_sem);
-				goto survive;
-			}
-			goto out;
+			BUG();
 		}
 		pte = pte_offset_kernel(pmd, page);
 	} while(!pte_present(*pte));
@@ -103,7 +97,6 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
-	err = -ENOMEM;
 	goto out;
 }