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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2020-04-07 12:37:14 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-04-14 16:01:38 -0300 |
| commit | 983653515849fb56b78ce55d349bb384d43030f6 (patch) | |
| tree | 6bc003f78adca5660e0106dda8030f470e23e35f /drivers/infiniband/core/cm.c | |
| parent | RDMA/cm: Fix missing RDMA_CM_EVENT_REJECTED event after receiving REJ message (diff) | |
| download | linux-dev-983653515849fb56b78ce55d349bb384d43030f6.tar.xz linux-dev-983653515849fb56b78ce55d349bb384d43030f6.zip | |
RDMA/cm: Fix an error check in cm_alloc_id_priv()
The xa_alloc_cyclic_irq() function returns either 0 or 1 on success and
negatives on error. This code treats 1 as an error and returns ERR_PTR(1)
which will cause an Oops in the caller.
Fixes: ae78ff3a0f0c ("RDMA/cm: Convert local_id_table to XArray")
Link: https://lore.kernel.org/r/20200407093714.GA80285@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/cm.c')
| -rw-r--r-- | drivers/infiniband/core/cm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 5d729bd9ad90..17f14e0eafe4 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -862,7 +862,7 @@ static struct cm_id_private *cm_alloc_id_priv(struct ib_device *device, ret = xa_alloc_cyclic_irq(&cm.local_id_table, &id, NULL, xa_limit_32b, &cm.local_id_next, GFP_KERNEL); - if (ret) + if (ret < 0) goto error; cm_id_priv->id.local_id = (__force __be32)id ^ cm.random_id_operand; |