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Commit 654dbef2 authored by Wei Yongjun's avatar Wei Yongjun Committed by Jens Axboe
Browse files

xen/blkback: use kmem_cache_zalloc instead of kmem_cache_alloc/memset 

Using kmem_cache_zalloc() instead of kmem_cache_alloc() and memset().

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/

)

Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent dbd47133

drivers/block/xen-blkback/xenbus.c

+1 −2
Original line number Diff line number Diff line
@@ -105,11 +105,10 @@ static struct xen_blkif *xen_blkif_alloc(domid_t domid) 
{

	struct xen_blkif *blkif;



	blkif = kmem_cache_alloc(xen_blkif_cachep, GFP_KERNEL);

	blkif = kmem_cache_zalloc(xen_blkif_cachep, GFP_KERNEL);

	if (!blkif)

		return ERR_PTR(-ENOMEM);



	memset(blkif, 0, sizeof(*blkif));

	blkif->domid = domid;

	spin_lock_init(&blkif->blk_ring_lock);

	atomic_set(&blkif->refcnt, 1);