diff options
| -rw-r--r-- | arch/i386/kernel/ioport.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/i386/kernel/ioport.c b/arch/i386/kernel/ioport.c index f2b37654777f..b59a34dbe262 100644 --- a/arch/i386/kernel/ioport.c +++ b/arch/i386/kernel/ioport.c @@ -108,8 +108,11 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) /* * Sets the lazy trigger so that the next I/O operation will * reload the correct bitmap. + * Reset the owner so that a process switch will not set + * tss->io_bitmap_base to IO_BITMAP_OFFSET. */ tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY; + tss->io_bitmap_owner = NULL; put_cpu(); |