diff options
| author |   Sudip Mukherjee <sudipm.mukherjee@gmail.com> | 2020-04-24 18:31:46 +0100 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-04-24 15:31:26 -0300 |
| commit | 47c370c1a5eea9b2f6f026d49e060c3748c89667 (patch) | |
| tree | c3bb03c31161b8fbbf5f3f27277e4c6568507255 | |
| parent | RDMA/core: Fix overwriting of uobj in case of error (diff) | |
| download | linux-dev-47c370c1a5eea9b2f6f026d49e060c3748c89667.tar.xz linux-dev-47c370c1a5eea9b2f6f026d49e060c3748c89667.zip | |
IB/rdmavt: Always return ERR_PTR from rvt_create_mmap_info()
The commit below modified rvt_create_mmap_info() to return ERR_PTR's but
didn't update the callers to handle them. Modify rvt_create_mmap_info() to
only return ERR_PTR and fix all error checking after
rvt_create_mmap_info() was called.
Fixes: ff23dfa13457 ("IB: Pass only ib_udata in function prototypes")
Link: https://lore.kernel.org/r/20200424173146.10970-1-sudipm.mukherjee@gmail.com
Cc: stable@vger.kernel.org [5.4+]
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/cq.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/mmap.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/qp.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/srq.c | 4 |
4 files changed, 8 insertions, 8 deletions
diff --git a/drivers/infiniband/sw/rdmavt/cq.c b/drivers/infiniband/sw/rdmavt/cq.c index 5724cbbe38b1..04d2e72017fe 100644 --- a/drivers/infiniband/sw/rdmavt/cq.c +++ b/drivers/infiniband/sw/rdmavt/cq.c @@ -248,8 +248,8 @@ int rvt_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, */ if (udata && udata->outlen >= sizeof(__u64)) { cq->ip = rvt_create_mmap_info(rdi, sz, udata, u_wc); - if (!cq->ip) { - err = -ENOMEM; + if (IS_ERR(cq->ip)) { + err = PTR_ERR(cq->ip); goto bail_wc; } diff --git a/drivers/infiniband/sw/rdmavt/mmap.c b/drivers/infiniband/sw/rdmavt/mmap.c index 652f4a7efc1b..37853aa3bcf7 100644 --- a/drivers/infiniband/sw/rdmavt/mmap.c +++ b/drivers/infiniband/sw/rdmavt/mmap.c @@ -154,7 +154,7 @@ done: * @udata: user data (must be valid!) * @obj: opaque pointer to a cq, wq etc * - * Return: rvt_mmap struct on success + * Return: rvt_mmap struct on success, ERR_PTR on failure */ struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, u32 size, struct ib_udata *udata, void *obj) @@ -166,7 +166,7 @@ struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, u32 size, ip = kmalloc_node(sizeof(*ip), GFP_KERNEL, rdi->dparms.node); if (!ip) - return ip; + return ERR_PTR(-ENOMEM); size = PAGE_ALIGN(size); diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 0e1b291d2cec..500a7ee04c44 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -1244,8 +1244,8 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd, qp->ip = rvt_create_mmap_info(rdi, s, udata, qp->r_rq.wq); - if (!qp->ip) { - ret = ERR_PTR(-ENOMEM); + if (IS_ERR(qp->ip)) { + ret = ERR_CAST(qp->ip); goto bail_qpn; } diff --git a/drivers/infiniband/sw/rdmavt/srq.c b/drivers/infiniband/sw/rdmavt/srq.c index 24fef021d51d..f547c115af03 100644 --- a/drivers/infiniband/sw/rdmavt/srq.c +++ b/drivers/infiniband/sw/rdmavt/srq.c @@ -111,8 +111,8 @@ int rvt_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *srq_init_attr, u32 s = sizeof(struct rvt_rwq) + srq->rq.size * sz; srq->ip = rvt_create_mmap_info(dev, s, udata, srq->rq.wq); - if (!srq->ip) { - ret = -ENOMEM; + if (IS_ERR(srq->ip)) { + ret = PTR_ERR(srq->ip); goto bail_wq; } |