x86/mce: Convert threshold_bank.cpus from atomic_t to refcount_t

The refcount_t type and corresponding API should be used instead
of atomic_t when the variable is used as a reference counter. This
allows to avoid accidental refcounter overflows that might lead to
use-after-free situations.

Suggested-by: Kees Cook <[email protected]>
Signed-off-by: Elena Reshetova <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Hans Liljestrand <[email protected]>
Reviewed-by: David Windsor <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Yazen Ghannam <[email protected]>
Cc: linux-edac <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

0 files changed, 0 insertions, 0 deletions