memset(bvl, 0, nr_iovecs * sizeof(struct bio_vec)); 
static struct bio *pkt_bio_alloc(int nr_iovecs){	struct bio_vec *bvl = NULL;	struct bio *bio;	bio = kmalloc(sizeof(struct bio), GFP_KERNEL);	if (!bio)		goto no_bio;	bio_init(bio);	bvl = kmalloc(nr_iovecs * sizeof(struct bio_vec), GFP_KERNEL);	if (!bvl)		goto no_bvl;	memset(bvl, 0, nr_iovecs * sizeof(struct bio_vec));	bio->bi_max_vecs = nr_iovecs;	bio->bi_io_vec = bvl;	bio->bi_destructor = pkt_bio_destructor;	return bio; no_bvl:	kfree(bio); no_bio:	return NULL;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/1107d2e0352769b9bde6a4877c295b9309cdb877/pktcdvd.c/clean/drivers/block/pktcdvd.c