[media] omap3isp: ccdc: Simplify ccdc_lsc_is_configured()

Use a local variable to avoid the duplicate spin_unlock_irqrestore()
call.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Enrico Butera <ebutera@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/omap3isp/ispccdc.c

@@ -481,14 +481,13 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
 static inline int ccdc_lsc_is_configured(struct isp_ccdc_device *ccdc)
 {
 	unsigned long flags;
+	int ret;
 
 	spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
-	if (ccdc->lsc.active) {
-		spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
-		return 1;
-	}
+	ret = ccdc->lsc.active != NULL;
 	spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
-	return 0;
+
+	return ret;
 }
 
 static int ccdc_lsc_enable(struct isp_ccdc_device *ccdc)