[PATCH] net: Checking usb_register() return value

[Marina Makienko]

ath6kl_usb_init() does not check usb_register() return value.
As a result it may incorrectly report success of driver initialization.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Marina Makienko <makienko@xxxxxxxxx>
---
 drivers/net/wireless/ath/ath6kl/usb.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index 3740c3d..39f05da 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1196,7 +1196,11 @@ static struct usb_driver ath6kl_usb_driver = {
 
 static int ath6kl_usb_init(void)
 {
-	usb_register(&ath6kl_usb_driver);
+	int ret = usb_register(&ath6kl_usb_driver);
+	if (ret) {
+		ath6kl_err("usb_register() failed: %d\n", ret);
+		return ret;
+	}
 	return 0;
 }
 
-- 
1.7.7

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