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From:   Navid Emamdoost <navid.emamdoost@gmail.com>
Cc:     emamd001@umn.edu, kjlu@umn.edu, smccaman@umn.edu,
        Navid Emamdoost <navid.emamdoost@gmail.com>,
        Mike Marciniszyn <mike.marciniszyn@intel.com>,
        Dennis Dalessandro <dennis.dalessandro@intel.com>,
        Doug Ledford <dledford@redhat.com>,
        Jason Gunthorpe <jgg@ziepe.ca>, linux-rdma@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] IB/hfi1: prevent memory leak in sdma_init
Date:   Wed, 25 Sep 2019 09:45:42 -0500
Message-Id: <20190925144543.10141-1-navid.emamdoost@gmail.com>
To:     unlisted-recipients:; (no To-header on input)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

In sdma_init if rhashtable_init fails the allocated memory for
tmp_sdma_rht should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 drivers/infiniband/hw/hfi1/sdma.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index 2395fd4233a7..2ed7bfd5feea 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -1526,8 +1526,11 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
 	}
 
 	ret = rhashtable_init(tmp_sdma_rht, &sdma_rht_params);
-	if (ret < 0)
+	if (ret < 0) {
+		kfree(tmp_sdma_rht);
 		goto bail;
+	}
+
 	dd->sdma_rht = tmp_sdma_rht;
 
 	dd_dev_info(dd, "SDMA num_sdma: %u\n", dd->num_sdma);
-- 
2.17.1