From: Sean Hefty <sean.hefty@intel.com>
Date: Thu, 14 Dec 2006 19:22:19 +0000 (-0800)
Subject: RDMA/ucma: Fix struct ucma_event leak when backlog is full
X-Git-Tag: firefly_0821_release~31569^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=30a5ec982e4cfa955f93c454debaefc4d61d2da6;p=firefly-linux-kernel-4.4.55.git

RDMA/ucma: Fix struct ucma_event leak when backlog is full

We discard new connection requests while the listen backlog is full,
but leak a struct ucma_event in the process.  Free the structure in
this case.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 81a5cdc5733a..9f30f9bffc61 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -209,6 +209,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
 	if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
 		if (!ctx->backlog) {
 			ret = -EDQUOT;
+			kfree(uevent);
 			goto out;
 		}
 		ctx->backlog--;