[PATCH 4.4 24/37] kaiser: fix unlikely error in alloc_ldt_struct()

[Greg Kroah-Hartman]

4.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Hugh Dickins <hu...@google.com>


An error from kaiser_add_mapping() here is not at all likely, but
Eric Biggers rightly points out that __free_ldt_struct() relies on
new_ldt->size being initialized: move that up.

Signed-off-by: Hugh Dickins <hu...@google.com>
Acked-by: Jiri Kosina <jkos...@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 arch/x86/kernel/ldt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -79,11 +79,11 @@ static struct ldt_struct *alloc_ldt_stru
 
        ret = kaiser_add_mapping((unsigned long)new_ldt->entries, alloc_size,
                                 __PAGE_KERNEL);
+       new_ldt->size = size;
        if (ret) {
                __free_ldt_struct(new_ldt);
                return NULL;
        }
-       new_ldt->size = size;
        return new_ldt;
 }