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Subject[PATCH] IB/mlx4: fix unitialised variable is_mcast
Date
From: Colin Ian King <colin.king@canonical.com>

Commit 297e0dad7 introduced a bug where is_mcast is now
no longer initiialised on the non-multicast condition and so
it can be any random value from the stack. This issue was
detected by cppcheck:

[drivers/infiniband/hw/mlx4/ah.c:103]: (error) Uninitialized
variable: is_mcast

Simple fix is to initialise is_mcast to zero.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/infiniband/hw/mlx4/ah.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index 170dca6..2d8c339 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -73,7 +73,7 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr
{
struct mlx4_ib_dev *ibdev = to_mdev(pd->device);
struct mlx4_dev *dev = ibdev->dev;
- int is_mcast;
+ int is_mcast = 0;
struct in6_addr in6;
u16 vlan_tag;

--
1.7.9.5


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