Messages in this thread Patch in this message | | | Date | Mon, 27 Aug 2012 12:28:57 +0800 | Subject | [PATCH] xen/blkback: use kmem_cache_zalloc instead of kmem_cache_alloc/memset | From | Wei Yongjun <> |
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
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> --- drivers/block/xen-blkback/xenbus.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 4f66171..c0bbc46 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -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);
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