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| author | Jack Morgenstein <jackm@mellanox.co.il> | 2006-01-06 16:43:14 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-01-06 16:43:14 -0800 |
| commit | ac4e7b35579de55db50d602a472858867808a9c3 (patch) | |
| tree | 09680302ee8c821bdea085af19d1d3b50ebcb4a9 | |
| parent | ea5d4a6ad2bfd1006790666981645cab43d3afbd (diff) | |
| download | linux-ac4e7b35579de55db50d602a472858867808a9c3.tar.gz linux-ac4e7b35579de55db50d602a472858867808a9c3.tar.bz2 linux-ac4e7b35579de55db50d602a472858867808a9c3.zip | |
IB/uverbs: Release event file reference on ib_uverbs_create_cq() error
ib_uverbs_create_cq() should release the completion channel event file
if an error occurs after it looks it up. Also, if userspace asks for
a completion channel and we don't find it, an error should be returned
instead of silently creating a CQ without a completion channel.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 12d6cc0a7f80..a02c5a05c984 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -594,13 +594,18 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, if (cmd.comp_vector >= file->device->num_comp_vectors) return -EINVAL; - if (cmd.comp_channel >= 0) - ev_file = ib_uverbs_lookup_comp_file(cmd.comp_channel); - uobj = kmalloc(sizeof *uobj, GFP_KERNEL); if (!uobj) return -ENOMEM; + if (cmd.comp_channel >= 0) { + ev_file = ib_uverbs_lookup_comp_file(cmd.comp_channel); + if (!ev_file) { + ret = -EINVAL; + goto err; + } + } + uobj->uobject.user_handle = cmd.user_handle; uobj->uobject.context = file->ucontext; uobj->uverbs_file = file; @@ -664,6 +669,8 @@ err_up: ib_destroy_cq(cq); err: + if (ev_file) + ib_uverbs_release_ucq(file, ev_file, uobj); kfree(uobj); return ret; } |