Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7b82cd8ee7374f803a3daf9a6cbc6eb4bbb10a63
Commit: 7b82cd8ee7374f803a3daf9a6cbc6eb4bbb10a63
Parent: 55b637c6a003a8c4850b41a2c2fd6942d8a7f530
Author: Eli Cohen <[EMAIL PROTECTED]>
AuthorDate: Mon May 14 11:35:43 2007 +0300
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Sat May 19 08:51:53 2007 -0700
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 <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
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 f32ca5f..6009234 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;
-
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