netdev - [PATCH 06/17] can: xilinx_can: fix comparison of unsigned variable

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Message-Id: <1416343067-9810-7-git-send-email-mkl@pengutronix.de>
Date:	Tue, 18 Nov 2014 21:37:36 +0100
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Sudip Mukherjee <sudip@...torindia.org>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH 06/17] can: xilinx_can: fix comparison of unsigned variable

From: Sudip Mukherjee <sudipm.mukherjee@...il.com>

The variable err was of the type u32. It was being compared with < 0, and being
an unsigned variable the comparison would have been always false.

Moreover, err was getting the return value from set_reset_mode() and
xcan_set_bittiming(), and both are returning int.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
Reviewed-by: Michal Simek <michal.simek@...inx.com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/xilinx_can.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 5e8b5609c067..47b2f801d127 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -300,7 +300,8 @@ static int xcan_set_bittiming(struct net_device *ndev)
 static int xcan_chip_start(struct net_device *ndev)
 {
 	struct xcan_priv *priv = netdev_priv(ndev);
-	u32 err, reg_msr, reg_sr_mask;
+	u32 reg_msr, reg_sr_mask;
+	int err;
 	unsigned long timeout;
 
 	/* Check if it is in reset mode */
-- 
2.1.3

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