[PATCH 2.6.20 1/2] ehca: ehca_cq.c: fix unproper use of yield within spinlock context

[Hoang-Nam Nguyen]

Hello Roland!
This is a patch for ehca_cq.c that fixes unproper use of yield within
spinlock context.
Thanks
Nam


Signed-off-by Hoang-Nam Nguyen <hnguyen at de.ibm.com>
---


 ehca_cq.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)


diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c
index 93995b6..6074c89 100644
--- a/drivers/infiniband/hw/ehca/ehca_cq.c
+++ b/drivers/infiniband/hw/ehca/ehca_cq.c
@@ -344,8 +344,11 @@ int ehca_destroy_cq(struct ib_cq *cq)
 	unsigned long flags;
 
 	spin_lock_irqsave(&ehca_cq_idr_lock, flags);
-	while (my_cq->nr_callbacks)
+	while (my_cq->nr_callbacks) {
+		spin_unlock_irqrestore(&ehca_cq_idr_lock, flags);
 		yield();
+		spin_lock_irqsave(&ehca_cq_idr_lock, flags);
+	}
 
 	idr_remove(&ehca_cq_idr, my_cq->token);
 	spin_unlock_irqrestore(&ehca_cq_idr_lock, flags);