[PATCH] x86: initialise tss->io_bitmap_owner to something
Bart Oldeman [Sun, 30 Oct 2005 22:59:29 +0000 (14:59 -0800)]
There exists a field io_bitmap_owner in the TSS that is only checked, but
never set to anything else but NULL.

Signed-off-by: Bart Oldeman <bartoldeman@users.sourceforge.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/kernel/traps.c

index 19e90bd..c34d1bf 100644 (file)
@@ -488,6 +488,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
                                tss->io_bitmap_max - thread->io_bitmap_max);
                tss->io_bitmap_max = thread->io_bitmap_max;
                tss->io_bitmap_base = IO_BITMAP_OFFSET;
+               tss->io_bitmap_owner = thread;
                put_cpu();
                return;
        }