linux-kernel - [PATCH -next] IB/qib: Add missing err handle for qib_user_sdma_rb

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Date:   Fri, 21 Dec 2018 10:19:38 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <dennis.dalessandro@...el.com>, <mike.marciniszyn@...el.com>,
        <dledford@...hat.com>, <jgg@...pe.ca>
CC:     <linux-kernel@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] IB/qib: Add missing err handle for qib_user_sdma_rb_insert

It should goto err handle if qib_user_sdma_rb_insert fails,
other than success return.

Fixes: 67810e8c3c01 ("RDMA/qib: Remove all occurrences of BUG_ON()")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/infiniband/hw/qib/qib_user_sdma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index 31c523b..e87c0a7 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -237,6 +237,8 @@ qib_user_sdma_queue_create(struct device *dev, int unit, int ctxt, int sctxt)
 
 		ret = qib_user_sdma_rb_insert(&qib_user_sdma_rb_root,
 					sdma_rb_node);
+		if (ret == 0)
+			goto err_rb;
 	}
 	pq->sdma_rb_node = sdma_rb_node;
 
-- 
2.7.0