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rbd: null vs ERR_PTR

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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>
This commit is contained in:
Dan Carpenter 2010-10-11 21:14:23 +02:00 committed by Sage Weil
parent 240634e9b3
commit b8d0638a98
1 changed files with 2 additions and 2 deletions
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4
drivers/block/rbd.c
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@ -826,8 +826,8 @@ static int rbd_req_sync_op(struct rbd_device *dev,
num_pages = calc_pages_for(ofs , len);
pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
if (!pages)
return -ENOMEM;
if (IS_ERR(pages))
return PTR_ERR(pages);
if (!orig_ops) {
payload_len = (flags & CEPH_OSD_FLAG_WRITE ? len : 0);