brcmfmac: add a check for the status of usb_register

usb_register() may fail, so let's check its status and issue an error
message if it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
index a4308c6..76cfaf6 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
@@ -1550,6 +1550,10 @@ void brcmf_usb_exit(void)
 
 void brcmf_usb_register(void)
 {
+       int ret;
+
        brcmf_dbg(USB, "Enter\n");
-       usb_register(&brcmf_usbdrvr);
+       ret = usb_register(&brcmf_usbdrvr);
+       if (ret)
+               brcmf_err("usb_register failed %d\n", ret);
 }