net/mlx4_core: Protect port type setting by mutex
authorAmir Vadai <amirv@mellanox.com>
Sun, 2 Nov 2014 14:26:14 +0000 (16:26 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 3 Nov 2014 17:28:13 +0000 (12:28 -0500)
commit0a98455666ec87378148a1dde97f1ce5baf75a64
treebfba09b40f2718ed459973f8673efe5acb3f9d8a
parent6e8066999800d90d52af5c84ac49ebf683d14cdc
net/mlx4_core: Protect port type setting by mutex

We need to protect set_port_type() for concurrency, as the sysfs code could
call it from mutliple contexts in parallel.

The port_mutex is not enough because we need to protect from concurrent
modification of 'info' and stopping of the port sensing work.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/main.c