linux-kernel - [PATCH 3/5] staging/wlags49_h2: correct check of the return value of register

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Message-Id: <1402930253-32537-4-git-send-email-stephan.gabert@fau.de>
Date:	Mon, 16 Jun 2014 16:50:51 +0200
From:	Stephan Gabert <stephan.gabert@....de>
To:	pe1dnn@...at.org, gregkh@...uxfoundation.org
Cc:	nicolas.pfeiffer@....de, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, linux-kernel@...cs.fau.de,
	Stephan Gabert <stephan.gabert@....de>
Subject: [PATCH 3/5] staging/wlags49_h2: correct check of the return value of register_netdev()

As mentioned in net/core/dev.c register_netdev() explicitly returns a
negative errno code on failure.

So in case of failure, one should rather test whether ret is negative
than just unlike 0.

Signed-off-by: Stephan Gabert <stephan.gabert@....de>
Signed-off-by: Nicolas Pfeiffer <nicolas.pfeiffer@....de>
---
 drivers/staging/wlags49_h2/wl_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wlags49_h2/wl_cs.c b/drivers/staging/wlags49_h2/wl_cs.c
index c79f1ed..764f547 100644
--- a/drivers/staging/wlags49_h2/wl_cs.c
+++ b/drivers/staging/wlags49_h2/wl_cs.c
@@ -232,7 +232,7 @@ int wl_adapter_insert(struct pcmcia_device *link)
 
 	SET_NETDEV_DEV(dev, &link->dev);
 	ret = register_netdev(dev);
-	if (ret != 0) {
+	if (ret < 0) {
 		printk("%s: register_netdev() failed\n", KBUILD_MODNAME);
 		goto failed;
 	}
-- 
1.9.1

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