drm/i915/active: Fix missing debug object activation

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.

v2: No need to check for "ref->count == 1" as __i915_active_activate()
already make sure of that(Janusz).

References: https://gitlab.freedesktop.org/drm/intel/-/issues/6733
Fixes: 04240e3 ("drm/i915: Skip taking acquire mutex for no ref->active callback")
Cc: Chris Wilson <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: Thomas Hellström <[email protected]>
Cc: Andi Shyti <[email protected]>
Cc: [email protected]
Cc: Janusz Krzysztofik <[email protected]>
Cc: <[email protected]> # v5.10+
Signed-off-by: Nirmoy Das <[email protected]>
Reviewed-by: Janusz Krzysztofik <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit bfad380)
Signed-off-by: Jani Nikula <[email protected]>

Author: nirmoy

drivers/gpu/drm/i915/i915_active.c

@@ -92,8 +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 */
-		debug_object_activate(ref, &active_debug_desc);
+	debug_object_activate(ref, &active_debug_desc);
 }
 
 static void debug_active_deactivate(struct i915_active *ref)