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Petr Machata dbcdb61aaf mlxsw: spectrum_ptp: Fix validation in mlxsw_sp1_ptp_packet_finish()
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: d92e4e6e33 ("mlxsw: spectrum: PTP: Support timestamping on Spectrum-1")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:31:20 -07:00
arch
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Documentation gve: Add workqueue and reset support 2019-07-01 19:36:35 -07:00
drivers mlxsw: spectrum_ptp: Fix validation in mlxsw_sp1_ptp_packet_finish() 2019-07-02 15:31:20 -07:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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