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>

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index dd31f9f..567bdbd 100644 (file)
--- 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_struct(int size)
 {
        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_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;