usb: gadget: compress return logic into one line

Simplify return logic and avoid unnecessary variable assignment.

Signed-off-by: Gustavo A. R. Silva <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/legacy/ncm.c

···
 	}
 
 	f_ncm = usb_get_function(f_ncm_inst);
-	if (IS_ERR(f_ncm)) {
-		status = PTR_ERR(f_ncm);
-		return status;
-	}
+	if (IS_ERR(f_ncm))
+		return PTR_ERR(f_ncm);
 
 	status = usb_add_function(c, f_ncm);
 	if (status < 0) {