Subject: mac80211_hwsim: Check return value of driver_register

From: Martin Pitt <[email-masked]>
Date: Wed, 10 Apr 2013 18:40:27 +0200

If driver_register() fails, properly exit with the same error code.

Signed-off-by: Martin Pitt <[email-masked]>
---
 drivers/net/wireless/mac80211_hwsim.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 57361c3..a2224b7 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2183,7 +2183,12 @@ static int __init init_mac80211_hwsim(void)
 	if (IS_ERR(hwsim_class))
 		return PTR_ERR(hwsim_class);
 
-	driver_register(&mac80211_hwsim_driver);
+	err = driver_register(&mac80211_hwsim_driver);
+	if (err != 0) {
+		printk(KERN_DEBUG
+		       "mac80211_hwsim: driver_register failed (%d)\n", err);
+		return err;
+	}
 
 	memset(addr, 0, ETH_ALEN);
 	addr[0] = 0x02;
-- 
1.7.2.5

-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)