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ec6f8401c4
linux/drivers/infiniband/core
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Jason Gunthorpe ec6f8401c4 IB/uverbs: Fix unbalanced unlock on error path for rdma_explicit_destroy 
If remove_commit fails then the lock is left locked while the uobj still
exists. Eventually the kernel will deadlock.

lockdep detects this and says:

 test/4221 is leaving the kernel with locks still held!
 1 lock held by test/4221:
  #0:  (&ucontext->cleanup_rwsem){.+.+}, at: [<000000001e5c7523>] rdma_explicit_destroy+0x37/0x120 [ib_uverbs]

Fixes: 4da70da23e ("IB/core: Explicitly destroy an object while keeping uobject")
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-15 15:31:26 -07:00
..
addr.c RDMA/core: Avoid copying ifindex twice 2017-12-18 15:37:10 -07:00
agent.c IB/core: Rename ib_destroy_ah to rdma_destroy_ah 2017-05-01 14:32:43 -04:00
agent.h
cache.c {net, IB}/mlx5: Manage port association for multiport RoCE 2018-01-08 11:42:22 -07:00
cgroup.c
cm_msgs.h
cm.c RDMA/cm: Fix access to uninitialized variable 2018-01-28 14:07:16 -07:00
cma_configfs.c IB/cma: use strlcpy() instead of strncpy() 2018-01-15 15:33:21 -07:00
cma.c RDMA/cma: Use existing netif_is_bond_master function 2018-01-28 14:07:16 -07:00
core_priv.h RDMA/core: Add resource tracking for create and destroy QPs 2018-01-29 20:21:39 -07:00
cq.c RDMA/core: Add resource tracking for create and destroy CQs 2018-01-29 20:21:40 -07:00
device.c RDMA/restrack: Add general infrastructure to track RDMA resources 2018-01-29 20:21:39 -07:00
fmr_pool.c infiniband: fix core/fmr_pool.c kernel-doc notation 2018-01-10 22:00:34 -07:00
iwcm.c RDMA/netlink: Fix general protection fault 2017-12-07 15:28:07 -05:00
iwcm.h
iwpm_msg.c RDMA/iwpm: Properly mark end of NL messages 2017-09-29 11:32:42 -04:00
iwpm_util.c RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo() 2017-12-13 10:55:49 -07:00
iwpm_util.h
mad_priv.h
mad_rmpp.c IB/mad: Change slid in RMPP recv from 16 to 32 bits 2017-08-08 14:47:18 -04:00
mad_rmpp.h
mad.c drivers: infiniband: remove duplicate includes 2017-12-22 09:39:35 -07:00
Makefile RDMA/restrack: Add general infrastructure to track RDMA resources 2018-01-29 20:21:39 -07:00
mr_pool.c
multicast.c IB/core: Define 'ib' and 'roce' rdma_ah_attr types 2017-05-01 14:32:43 -04:00
netlink.c RDMA/netlink: Simplify code of autoload modules 2018-01-02 13:36:57 -07:00
nldev.c RDMA/nldev: missing error code in nldev_res_get_doit() 2018-02-01 15:24:32 -07:00
opa_smi.h
packer.c
rdma_core.c IB/uverbs: Fix unbalanced unlock on error path for rdma_explicit_destroy 2018-02-15 15:31:26 -07:00
rdma_core.h IB/core: Add new ioctl interface 2017-08-31 08:35:09 -04:00
restrack.c RDMA/restrack: Remove unimplemented XRCD object 2018-02-15 14:59:44 -07:00
roce_gid_mgmt.c {net, IB}/mlx5: Manage port association for multiport RoCE 2018-01-08 11:42:22 -07:00
rw.c IB/core: remove redundant check on prot_sg_cnt 2017-10-10 10:49:45 -04:00
sa_query.c IB/SA: Check dlid before SA agent queries for ClassPortInfo 2017-12-22 13:33:30 -07:00
sa.h
security.c Merge branch 'from-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git 2017-12-27 21:50:46 -07:00
smi.c
smi.h
sysfs.c IB/core: Fix two kernel warnings triggered by rxe registration 2018-01-03 17:26:59 -07:00
ucm.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ucma.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ud_header.c
umem_odp.c RDMA/umem: Avoid partial declaration of non-static function 2017-11-10 13:02:12 -05:00
umem.c IB/umem: Fix use of npages/nmap fields 2017-12-18 15:37:06 -07:00
user_mad.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
uverbs_cmd.c RDMA/core: Add resource tracking for create and destroy PDs 2018-01-29 20:21:40 -07:00
uverbs_ioctl_merge.c IB/uverbs: Fix method merging in uverbs_ioctl_merge 2018-02-15 14:59:45 -07:00
uverbs_ioctl.c IB/uverbs: Fix possible oops with duplicate ioctl attributes 2018-02-15 14:59:46 -07:00
uverbs_main.c IB/uverbs: Add ioctl support for 32bit processes 2018-02-15 14:59:46 -07:00
uverbs_marshall.c IB/core: Convert OPA AH to IB for Extended LIDs only 2017-11-13 15:53:57 -05:00
uverbs_std_types.c IB/uverbs: Use u64_to_user_ptr() not a union 2018-02-15 14:59:45 -07:00
uverbs.h IB/uverbs: Allow CQ moderation with modify CQ 2017-11-13 16:59:22 -05:00
verbs.c RDMA/core: Add resource tracking for create and destroy PDs 2018-01-29 20:21:40 -07:00