linux-kernel - [PATCH] staging: wilc1000: correctly check if associatedsta has not been found

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Date:	Mon, 15 Aug 2016 17:09:52 +0100
From:	Colin King <colin.king@...onical.com>
To:	Johnny Kim <johnny.kim@...el.com>,
	Austin Shin <austin.shin@...el.com>,
	Chris Park <chris.park@...el.com>,
	Tony Cho <tony.cho@...el.com>, Glen Lee <glen.lee@...el.com>,
	Leo Kim <leo.kim@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] staging: wilc1000: correctly check if associatedsta has not been found

From: Colin Ian King <colin.king@...onical.com>

The current check for associatedsta being set to -1 to indicate it has
not been found is not working because associatedsta is initialized to
zero and will never be -1.  Fix this by initializing it to ~0 and checking
for ~0 instead.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 9092600..2c2e8ac 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -1191,7 +1191,7 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 	struct wilc_priv *priv;
 	struct wilc_vif *vif;
 	u32 i = 0;
-	u32 associatedsta = 0;
+	u32 associatedsta = ~0;
 	u32 inactive_time = 0;
 	priv = wiphy_priv(wiphy);
 	vif = netdev_priv(dev);
@@ -1204,7 +1204,7 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 			}
 		}
 
-		if (associatedsta == -1) {
+		if (associatedsta == ~0) {
 			netdev_err(dev, "sta required is not associated\n");
 			return -ENOENT;
 		}
-- 
2.8.1