[WATCHDOG] SBC-FITPC2 watchdog driver registration fix

This patch fixes device registration process.
Signed-off-by: NDenis Turischev <denis@compulab.co.il>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

drivers/watchdog/sbc_fitpc2_wdt.c

@@ -227,7 +227,7 @@ static int __init fitpc2_wdt_init(void)
 	}
 
 	err = misc_register(&fitpc2_wdt_miscdev);
-	if (!err) {
+	if (err) {
 		pr_err("cannot register miscdev on minor=%d (err=%d)\n",
 							WATCHDOG_MINOR, err);
 		goto err_margin;