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rbd: Fix error recovery in rbd_obj_read_sync()

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When we fail to allocate page vector in rbd_obj_read_sync() we just
basically ignore the problem and continue which will result in an oops
later. Fix the problem by returning proper error.

CC: Yehuda Sadeh <yehuda@inktank.com>
CC: Sage Weil <sage@inktank.com>
CC: ceph-devel@vger.kernel.org
CC: stable@vger.kernel.org
Coverity-id: 1226882
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
This commit is contained in:
Jan Kara 2014-10-22 09:17:24 +02:00 committed by Ilya Dryomov
parent 89baaa570a
commit a8d4205623
1 changed files with 1 additions and 1 deletions
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2
drivers/block/rbd.c
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@ -3533,7 +3533,7 @@ static int rbd_obj_read_sync(struct rbd_device *rbd_dev,
page_count = (u32) calc_pages_for(offset, length);
pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
if (IS_ERR(pages))
ret = PTR_ERR(pages);
return PTR_ERR(pages);
ret = -ENOMEM;
obj_request = rbd_obj_request_create(object_name, offset, length,