From: Petr Machata <pe...@mellanox.com>
Date: Tue, 2 Jul 2019 19:06:47 +0000
> Before mlxsw_sp1_ptp_packet_finish() sends the packet back, it validates
> whether the corresponding port is still valid. However the condition is
> incorrect: when mlxsw_sp_port == NULL, the code dereferences the port to
> compare it to skb->dev.
>
> The condition needs to check whether the port is present and skb->dev still
> refers to that port (or else is NULL). If that does not hold, bail out.
> Add a pair of parentheses to fix the condition.
>
> Fixes: d92e4e6e33c8 ("mlxsw: spectrum: PTP: Support timestamping on
> Spectrum-1")
> Reported-by: Colin Ian King <colin.k...@canonical.com>
> Signed-off-by: Petr Machata <pe...@mellanox.com>
> Signed-off-by: Colin Ian King <colin.k...@canonical.com>
> Reviewed-by: Ido Schimmel <ido...@mellanox.com>
Applied, thank you.
