cec: fix confusing CEC_CAP_RC and IS_REACHABLE(CONFIG_RC_CORE) code

Message ID 0bce68f1-c9a6-ad11-c95b-7a044e20c1aa@xs4all.nl (mailing list archive)
State Accepted, archived
Delegated to: Hans Verkuil
Headers

Commit Message

Hans Verkuil April 4, 2017, 4:43 p.m. UTC
  It is a bit confusing how CEC_CAP_RC and IS_REACHABLE(CONFIG_RC_CORE)
interact. By stripping CEC_CAP_RC at the beginning rather than after #else
it should be a bit clearer what is going on.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Lee Jones <lee.jones@linaro.org>
---
  

Patch

diff --git a/drivers/media/cec/cec-core.c b/drivers/media/cec/cec-core.c
index e5070b374276..66fd3de15ef8 100644
--- a/drivers/media/cec/cec-core.c
+++ b/drivers/media/cec/cec-core.c
@@ -220,6 +220,10 @@  struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
 	struct cec_adapter *adap;
 	int res;

+#if !IS_REACHABLE(CONFIG_RC_CORE)
+	caps &= ~CEC_CAP_RC;
+#endif
+
 	if (WARN_ON(!caps))
 		return ERR_PTR(-EINVAL);
 	if (WARN_ON(!ops))
@@ -252,10 +256,10 @@  struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
 		return ERR_PTR(res);
 	}

+#if IS_REACHABLE(CONFIG_RC_CORE)
 	if (!(caps & CEC_CAP_RC))
 		return adap;

-#if IS_REACHABLE(CONFIG_RC_CORE)
 	/* Prepare the RC input device */
 	adap->rc = rc_allocate_device(RC_DRIVER_SCANCODE);
 	if (!adap->rc) {
@@ -282,8 +286,6 @@  struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
 	adap->rc->priv = adap;
 	adap->rc->map_name = RC_MAP_CEC;
 	adap->rc->timeout = MS_TO_NS(100);
-#else
-	adap->capabilities &= ~CEC_CAP_RC;
 #endif
 	return adap;
 }