x86/ldt: Make a size argument unsigned

My static checker complains that we put an upper bound on the "size"
argument but not a lower bound.  The checker is not smart enough to know
the possible ranges of "old_mm->context.ldt->size" from
init_new_context_ldt() so it thinks maybe it could be negative.

Let's make it unsigned to silence the warning and future proof the code
a bit.

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: [email protected]
Cc: Andrey Ryabinin <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 6707039b9032..e25b6681cc65 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -34,7 +34,7 @@ static void flush_ldt(void *current_mm)
 }
 
 /* The caller must call finalize_ldt_struct on the result. LDT starts zeroed. */
-static struct ldt_struct *alloc_ldt_struct(int size)
+static struct ldt_struct *alloc_ldt_struct(unsigned int size)
 {
 	struct ldt_struct *new_ldt;
 	int alloc_size;