mirror of https://gitee.com/openkylin/linux.git
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: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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@ -105,11 +105,10 @@ static struct xen_blkif *xen_blkif_alloc(domid_t domid)
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{
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struct xen_blkif *blkif;
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blkif = kmem_cache_alloc(xen_blkif_cachep, GFP_KERNEL);
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blkif = kmem_cache_zalloc(xen_blkif_cachep, GFP_KERNEL);
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if (!blkif)
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return ERR_PTR(-ENOMEM);
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memset(blkif, 0, sizeof(*blkif));
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blkif->domid = domid;
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spin_lock_init(&blkif->blk_ring_lock);
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atomic_set(&blkif->refcnt, 1);
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