IB/mlx4: fix unitialised variable is_mcast
Commit 297e0dad7206 ("IB/mlx4: Handle Ethernet L2 parameters for IP
based GID addressing") introduced a bug where is_mcast is now no
longer initialized 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>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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 @@
{
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;
