staging: qlge: Replace memset with assignment

Instead of clearing the structure wholesale, it is sufficient to initialize
the skb member which is used to manage sbq instances. lbq instances are
managed according to curr_idx and clean_idx.
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Link: https://lore.kernel.org/r/20190927101210.23856-15-bpoirier@suse.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/qlge/qlge_main.c

@@ -2807,11 +2807,10 @@ static int qlge_init_bq(struct qlge_bq *bq)
 	if (!bq->queue)
 		return -ENOMEM;
 
-	memset(bq->queue, 0, QLGE_BQ_LEN * sizeof(struct qlge_bq_desc));
-
 	buf_ptr = bq->base;
 	bq_desc = &bq->queue[0];
 	for (i = 0; i < QLGE_BQ_LEN; i++, buf_ptr++, bq_desc++) {
+		bq_desc->p.skb = NULL;
 		bq_desc->index = i;
 		bq_desc->buf_ptr = buf_ptr;
 	}