linux-kernel - [PATCH 07/11] iwlwifi: dvm: Fix probable mask then right shift defect

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Date:	Sun, 26 Oct 2014 22:25:03 -0700
From:	Joe Perches <joe@...ches.com>
To:	linux-kernel@...r.kernel.org
Cc:	Johannes Berg <johannes.berg@...el.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Intel Linux Wireless <ilw@...ux.intel.com>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 07/11] iwlwifi: dvm: Fix probable mask then right shift defect

Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the mask.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 drivers/net/wireless/iwlwifi/dvm/lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index 2191621..02e4ede 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -418,8 +418,8 @@ void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
 
 static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
 {
-	return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
-			BT_UART_MSG_FRAME3SCOESCO_POS;
+	return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
+		BT_UART_MSG_FRAME3SCOESCO_POS;
 }
 
 static void iwlagn_bt_traffic_change_work(struct work_struct *work)
-- 
2.1.2

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