[PATCH AUTOSEL 4.9 01/11] RDMA/mlx4: Initialize ib_spec on the stack

[Sasha Levin]

From: Alaa Hleihel <alaa@xxxxxxxxxxxx>

[ 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-leon@xxxxxxxxxx
Signed-off-by: Alaa Hleihel <alaa@xxxxxxxxxxxx>
Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 adc46b809ef2a..0555c939c948d 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1589,8 +1589,9 @@ 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