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authorJan Kara <jack@suse.cz>2014-10-22 09:17:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-14 10:10:39 -0800
commit7205c36680c5aedffbec9b49a9a7e8310da10354 (patch)
tree465168242432c926a4609a2b5fa2ebf1a2d9d775
parent27a7bcd561d9c79bdd427f8855f130de88dce663 (diff)
rbd: Fix error recovery in rbd_obj_read_sync()
commit a8d4205623ae965e36c68629db306ca0695a2771 upstream. 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 Coverity-id: 1226882 Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Ilya Dryomov <idryomov@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/block/rbd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 03f536867fd8..33f0f97d3750 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3382,7 +3382,7 @@ 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,