arm_mpam: Release the mon_sel lock on mpam_save_mbwu_state() errors

mpam_save_mbwu_state() takes the mon_sel lock at the top of each loop
iteration, but the four error paths that return after failed
MPAMF_MON_SEL register accesses do so without releasing it.

Take the lock with the conditional mon_sel_lock guard class instead,
so all exit paths release it.

Fixes: a3a94c13c442 ("arm_mpam: propagate MSC access errors for state saving function")
Signed-off-by: Ping Li <leeonion.muyu@gmail.com>
Reviewed-by: Ben Horgan <ben.horgan@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

0 files changed, 0 insertions, 0 deletions