[PATCH v2] IB/hfi1: prevent memory leak in sdma_init

[Navid Emamdoost]

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

Fixes: 5a52a7acf7e2 ("IB/hfi1: NULL pointer dereference when freeing 
rhashtable")
Signed-off-by: Navid Emamdoost <navid.emamdo...@gmail.com>
---
Changes in v2:
        -- added Fixes tag.
---
 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