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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2018-02-13 12:18:40 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-02-15 15:31:26 -0700 |
| commit | ec6f8401c48a86809237e86878a6fac6b281118f (patch) | |
| tree | 89769f2e7b09a3a19973735b2801f984806c7c99 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | IB/uverbs: Improve lockdep_check (diff) | |
| download | linux-dev-ec6f8401c48a86809237e86878a6fac6b281118f.tar.xz linux-dev-ec6f8401c48a86809237e86878a6fac6b281118f.zip | |
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: 4da70da23e9b ("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>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions