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RDMA/odp: Fix leaking the tgid for implicit ODP

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The tgid used to be part of ib_umem_free_notifier(), when it was reworked
it got moved to release, but it should have been unconditional as all umem
alloc paths get the tgid.

As is, creating an implicit ODP will leak the tgid reference.

Link: https://lore.kernel.org/r/20200304181607.GA22412@ziepe.ca
Cc: stable@kernel.org
Fixes: f25a546e65 ("RDMA/odp: Use mmu_interval_notifier_insert()")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2020-03-04 14:16:07 -04:00
parent 2c523b344d
commit 0f9826f475
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/core/umem_odp.c
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@ -275,8 +275,8 @@ void ib_umem_odp_release(struct ib_umem_odp *umem_odp)
mmu_interval_notifier_remove(&umem_odp->notifier);
kvfree(umem_odp->dma_list);
kvfree(umem_odp->page_list);
put_pid(umem_odp->tgid);
}
put_pid(umem_odp->tgid);
kfree(umem_odp);
}
EXPORT_SYMBOL(ib_umem_odp_release);