1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
From 183131e8c381ffb7c32a09a7356cb25450d2bd40 Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hughd@google.com>
Date: Sun, 3 Sep 2017 17:09:44 -0700
Subject: [PATCH 008/103] kaiser: fix build and FIXME in alloc_ldt_struct()
Include linux/kaiser.h instead of asm/kaiser.h to build ldt.c without
CONFIG_KAISER. kaiser_add_mapping() does already return an error code,
so fix the FIXME.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kernel/ldt.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 3c2d55b..8331bad 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -15,9 +15,9 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/uaccess.h>
+#include <linux/kaiser.h>
#include <asm/ldt.h>
-#include <asm/kaiser.h>
#include <asm/desc.h>
#include <asm/mmu_context.h>
#include <asm/syscalls.h>
@@ -48,7 +48,7 @@ static struct ldt_struct *alloc_ldt_struct(int size)
{
struct ldt_struct *new_ldt;
int alloc_size;
- int ret = 0;
+ int ret;
if (size > LDT_ENTRIES)
return NULL;
@@ -76,10 +76,8 @@ static struct ldt_struct *alloc_ldt_struct(int size)
return NULL;
}
- // FIXME: make kaiser_add_mapping() return an error code
- // when it fails
- kaiser_add_mapping((unsigned long)new_ldt->entries, alloc_size,
- __PAGE_KERNEL);
+ ret = kaiser_add_mapping((unsigned long)new_ldt->entries, alloc_size,
+ __PAGE_KERNEL);
if (ret) {
__free_ldt_struct(new_ldt);
return NULL;
--
2.7.4
|
