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

Signed-off-by: Martin Pitt <martin.p...@ubuntu.com>
---
 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)
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