From: Alaa Hleihel <a...@mellanox.com>

[ Upstream commit c08cfb2d8d78bfe81b37cc6ba84f0875bddd0d5c ]

Initialize ib_spec on the stack before using it, otherwise we will have
garbage values that will break creating default rules with invalid parsing
error.

Fixes: a37a1a428431 ("IB/mlx4: Add mechanism to support flow steering over IB 
links")
Link: https://lore.kernel.org/r/20200413132235.930642-1-l...@kernel.org
Signed-off-by: Alaa Hleihel <a...@mellanox.com>
Reviewed-by: Maor Gottlieb <ma...@mellanox.com>
Signed-off-by: Leon Romanovsky <leo...@mellanox.com>
Signed-off-by: Jason Gunthorpe <j...@mellanox.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/infiniband/hw/mlx4/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c 
b/drivers/infiniband/hw/mlx4/main.c
index 369a203332a26..61a1b0bdede05 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1492,8 +1492,9 @@ static int __mlx4_ib_create_default_rules(
        int i;
 
        for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
+               union ib_flow_spec ib_spec = {};
                int ret;
-               union ib_flow_spec ib_spec;
+
                switch (pdefault_rules->rules_create_list[i]) {
                case 0:
                        /* no rule */
-- 
2.20.1

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