From 296dc5806de57dc84fce000d60fc201ba40f96e8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 8 Dec 2016 13:56:03 +0300 Subject: [PATCH] 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 Acked-by: Andy Lutomirski Cc: Dave Hansen Cc: kernel-janitors@vger.kernel.org Cc: Andrey Ryabinin Cc: Andrew Morton Link: http://lkml.kernel.org/r/20161208105602.GA11382@elgon.mountain Signed-off-by: Thomas Gleixner --- arch/x86/kernel/ldt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- 2.30.2