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RDMA/rxe: Fix double unlock in rxe_qp.c

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A recent patch can cause a double spin_unlock_bh() in rxe_qp_to_attr() at
line 715 in rxe_qp.c. Move the 2nd unlock into the if statement.

Fixes: f605f26ea1 ("RDMA/rxe: Protect QP state with qp->state_lock")
Link: https://lore.kernel.org/r/20230515201056.1591140-1-rpearsonhpe@gmail.com
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/27773078-40ce-414f-8b97-781954da9f25@kili.mountain
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Bob Pearson 2023-05-15 15:10:57 -05:00 committed by Jason Gunthorpe
parent 78b6a9a3f4
commit 17eabd6a04
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/sw/rxe/rxe_qp.c
View file

@ -712,8 +712,9 @@ int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask)
if (qp->attr.sq_draining) {
spin_unlock_bh(&qp->state_lock);
cond_resched();
} else {
spin_unlock_bh(&qp->state_lock);
}
spin_unlock_bh(&qp->state_lock);
return 0;
}