From: Dean Luick <dean.luick@intel.com>
Date: Thu, 28 Jul 2016 19:21:16 +0000 (-0400)
Subject: IB/hfi1: Release node on insert failure
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a383f8ec552c9af5066eb488cc7a2d8b3994151d;p=linux-beck.git

IB/hfi1: Release node on insert failure

If unable to insert node into the RB tree cache, node will be freed
before returning from the function.  Null out iovec's pointer to node
so iovec does not try to free it later.

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index 42cc371cdf95..ff03e1dad5b9 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -1239,6 +1239,7 @@ retry:
 			list_del(&node->list);
 		pq->n_locked -= node->npages;
 		spin_unlock(&pq->evict_lock);
+		iovec->node = NULL;
 		goto bail;
 	}
 	return 0;