diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2007-05-14 11:35:43 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-05-19 08:51:53 -0700 |
| commit | 7b82cd8ee7374f803a3daf9a6cbc6eb4bbb10a63 (patch) | |
| tree | 2ff12883dc0f1116a29c83d4396e8c965fcd13fe /drivers/infiniband | |
| parent | 55b637c6a003a8c4850b41a2c2fd6942d8a7f530 (diff) | |
| download | lwn-7b82cd8ee7374f803a3daf9a6cbc6eb4bbb10a63.tar.gz lwn-7b82cd8ee7374f803a3daf9a6cbc6eb4bbb10a63.zip | |
IB/core: Free umem when mm is already gone
Free umem when task's mm is already destroyed by the time
ib_umem_release gets called.
Found by Dotan Barak at Mellanox.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/umem.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index f32ca5fbb26b..6009234e4f9e 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -209,8 +209,10 @@ void ib_umem_release(struct ib_umem *umem) __ib_umem_release(umem->context->device, umem, 1); mm = get_task_mm(current); - if (!mm) + if (!mm) { + kfree(umem); return; + } diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT; |