staging: crystalhd: enclose multi statements macro

Enclose multiple statements macro with do - while block.

Signed-off-by: SeongJae Park <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/crystalhd/crystalhd_hw.c

···
 }
 
 #define crystalhd_hw_delete_ioq(adp, q)		\
+do {						\
 	if (q) {				\
 		crystalhd_delete_dioq(adp, q);	\
 		q = NULL;			\
-	}
+	}					\
+} while (0)
 
 static void crystalhd_hw_delete_ioqs(struct crystalhd_hw *hw)
 {