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IB/mlx4: fix unitialised variable is_mcast

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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>
This commit is contained in:
Colin Ian King
2014-05-17 23:33:44 +01:00
committed by Roland Dreier
parent d6d211db37
commit bfdfcfee3c
1 changed files with 1 additions and 1 deletions
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drivers/infiniband/hw/mlx4/ah.c
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@ -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;