From 1a7a2e3c1516ac8933597a068f7226dac09b74b1 Mon Sep 17 00:00:00 2001
From: Blue Swirl <blauwirbel@gmail.com>
Date: Sat, 5 May 2007 18:34:01 +0000
Subject: [PATCH] More obviously alarming return values for find_pte

git-svn-id: svn://coreboot.org/openbios/openbios-devel@141 f158a5a8-5612-0410-a976-696ce0be7e32
---
 drivers/iommu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu.c b/drivers/iommu.c
index 81226e9..bb9656f 100644
--- a/drivers/iommu.c
+++ b/drivers/iommu.c
@@ -124,12 +124,12 @@ find_pte(unsigned long va, int alloc)
             p = mem_zalloc(&cmem, SRMMU_PTRS_PER_PMD * sizeof(int),
                            SRMMU_PTRS_PER_PMD * sizeof(int));
             if (p == 0)
-                return 1;
+                return -1;
             pte = SRMMU_ET_PTD | ((va2pa((unsigned long)p)) >> 4);
             l1[(va >> SRMMU_PGDIR_SHIFT) & (SRMMU_PTRS_PER_PGD - 1)] = pte;
             /* barrier() */
         } else {
-            return 1;
+            return -1;
         }
     }
 
@@ -141,11 +141,11 @@ find_pte(unsigned long va, int alloc)
             p = mem_zalloc(&cmem, SRMMU_PTRS_PER_PTE * sizeof(void *),
                            SRMMU_PTRS_PER_PTE * sizeof(void *));
             if (p == 0)
-                return 2;
+                return -2;
             pte = SRMMU_ET_PTD | ((va2pa((unsigned int)p)) >> 4);
             *(uint32_t *)pa2va(pa) = pte;
         } else {
-            return 2;
+            return -2;
         }
     }