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IB/uverbs: Don't leak ref to mm on error path
author
Roland Dreier
<rolandd@cisco.com>
Thu, 18 May 2006 05:20:50 +0000
(22:20 -0700)
committer
Roland Dreier
<rolandd@cisco.com>
Thu, 18 May 2006 05:20:50 +0000
(22:20 -0700)
In ib_umem_release_on_close(), if the kmalloc() fails, then a
reference to current->mm will be leaked. Fix this by adding a mmput()
instead of just returning on kmalloc() failure.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/core/uverbs_mem.c
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diff --git
a/drivers/infiniband/core/uverbs_mem.c
b/drivers/infiniband/core/uverbs_mem.c
index
36a32c3
..
efe147d
100644
(file)
--- a/
drivers/infiniband/core/uverbs_mem.c
+++ b/
drivers/infiniband/core/uverbs_mem.c
@@
-211,8
+211,10
@@
void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem)
*/
work = kmalloc(sizeof *work, GFP_KERNEL);
- if (!work)
+ if (!work) {
+ mmput(mm);
return;
+ }
INIT_WORK(&work->work, ib_umem_account, work);
work->mm = mm;