debug_active_activate() expected ref->count to be zero which is not true anymore as __i915_active_activate() calls debug_active_activate() after incrementing the count.
Fixes: 04240e30ed06 ("drm/i915: Skip taking acquire mutex for no ref->active callback") Cc: Chris Wilson chris@chris-wilson.co.uk Cc: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Thomas Hellström thomas.hellstrom@intel.com Cc: Andi Shyti andi.shyti@linux.intel.com Cc: intel-gfx@lists.freedesktop.org Cc: stable@vger.kernel.org # v5.10+ Signed-off-by: Nirmoy Das nirmoy.das@intel.com --- drivers/gpu/drm/i915/i915_active.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c index a9fea115f2d2..1c3066eb359a 100644 --- a/drivers/gpu/drm/i915/i915_active.c +++ b/drivers/gpu/drm/i915/i915_active.c @@ -92,7 +92,7 @@ static void debug_active_init(struct i915_active *ref) static void debug_active_activate(struct i915_active *ref) { lockdep_assert_held(&ref->tree_lock); - if (!atomic_read(&ref->count)) /* before the first inc */ + if (atomic_read(&ref->count) == 1) /* after the first inc */ debug_object_activate(ref, &active_debug_desc); }