rbd: null vs ERR_PTR
ceph_alloc_page_vector() returns ERR_PTR(-ENOMEM) on errors. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
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@ -826,8 +826,8 @@ static int rbd_req_sync_op(struct rbd_device *dev,
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num_pages = calc_pages_for(ofs , len);
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pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
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if (!pages)
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return -ENOMEM;
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if (IS_ERR(pages))
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return PTR_ERR(pages);
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if (!orig_ops) {
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payload_len = (flags & CEPH_OSD_FLAG_WRITE ? len : 0);
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