[PATCH] x86: initialise tss->io_bitmap_owner to something
authorBart Oldeman <bartoldeman@users.sourceforge.net>
Sun, 30 Oct 2005 22:59:29 +0000 (14:59 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 31 Oct 2005 01:37:11 +0000 (17:37 -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 19e90bdd84eac1834efe26127429b0cec15f1670..c34d1bfc51619b0ee978740d34ffad9d6dd499bb 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;
        }