Patch "IB/mlx4: Fix create CQ error flow" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

IB/mlx4: Fix create CQ error flow

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
ib-mlx4-fix-create-cq-error-flow.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Matan Barak <[email protected]>
Date: Thu, 10 Nov 2016 11:30:55 +0200
Subject: IB/mlx4: Fix create CQ error flow

From: Matan Barak <[email protected]>

commit 593ff73bcfdc79f79a8a0df55504f75ad3e5d1a9 upstream.

Currently, if ib_copy_to_udata fails, the CQ won't be deleted from the radix tree and the HW (HW2SW).

---
 drivers/infiniband/hw/mlx4/cq.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

@@ -253,11 +253,14 @@ struct ib_cq *mlx4_ib_create_cq(struct i
 	if (context)
 		if (ib_copy_to_udata(udata, &cq->mcq.cqn, sizeof (__u32))) {
 			err = -EFAULT;
-			goto err_dbmap;
+			goto err_cq_free;
 		}
 
 	return &cq->ibcq;
 
+err_cq_free:
+	mlx4_cq_free(dev->dev, &cq->mcq);
+
 err_dbmap:
 	if (context)
 		mlx4_ib_db_unmap_user(to_mucontext(context), &cq->db);

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/ib-mlx4-fix-create-cq-error-flow.patch