iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/core: Init subsys if compiled to vmlinuz-core

Browse Source 
[ Upstream commit a9cd1a673737dd81332fce1145801bfacfb90d90 ]

Once infiniband is compiled as a core component its subsystem must be
enabled before device initialization. Otherwise there is a NULL pointer
dereference during mlx4_core init, calltrace:
->device_add
  if (dev->class) {
     deref  dev->class->p =>NULLPTR

#Config
CONFIG_NET_DEVLINK=y
CONFIG_MAY_USE_DEVLINK=y
CONFIG_MLX4_EN=y

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Monakhov 2017-11-27 13:39:05 +00:00 committed by Greg Kroah-Hartman
parent 1ffc1b361a
commit 2ded534c90
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/core/device.c
View File

@ -1261,5 +1261,5 @@ static void __exit ib_core_cleanup(void)
MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_LS, 4);
module_init(ib_core_init);
subsys_initcall(ib_core_init);
module_exit(ib_core_cleanup);