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Subject[PATCH 4.9 08/39] kaiser: fix build and FIXME in alloc_ldt_struct()
Date
4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hugh Dickins <hughd@google.com>


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(-)

--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -16,9 +16,9 @@
#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>
@@ -49,7 +49,7 @@ static struct ldt_struct *alloc_ldt_stru
{
struct ldt_struct *new_ldt;
int alloc_size;
- int ret = 0;
+ int ret;

if (size > LDT_ENTRIES)
return NULL;
@@ -77,10 +77,8 @@ static struct ldt_struct *alloc_ldt_stru
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;

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