[PATCH] rtl8188eu: Replace rcu_dereference() with rcu_access_pointer()

[Andreea-Cristina Bernat]

The "rcu_dereference()" call is used directly in a condition.
Since its return value is never dereferenced it is recommended to use
"rcu_access_pointer()" instead of "rcu_dereference()".
Therefore, this patch makes the replacement.

The following Coccinelle semantic patch was used:
@@
@@

(
 if(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
|
 while(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
)

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@xxxxxxxxx>
---
 drivers/staging/rtl8188eu/core/rtw_mlme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index 155282e..8643003 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -1544,7 +1544,7 @@ void rtw_dynamic_check_timer_handlder(struct adapter *adapter)
 
 	rcu_read_lock();
 
-	if (rcu_dereference(adapter->pnetdev->rx_handler_data) &&
+	if (rcu_access_pointer(adapter->pnetdev->rx_handler_data) &&
 	    (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_ADHOC_STATE) == true)) {
 		/*  expire NAT2.5 entry */
 		nat25_db_expire(adapter);
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/