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RDMA/device: Ensure that security memory is always freed

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Since this only frees memory it should be done during the release
callback. Otherwise there are possible error flows where it might not get
called if registration aborts.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2019-02-06 22:41:48 -07:00
parent e3593b568a
commit b34b269ad8
3 changed files with 6 additions and 12 deletions
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4
drivers/infiniband/core/core_priv.h
View File

@ -181,7 +181,7 @@ int ib_get_cached_subnet_prefix(struct ib_device *device,
u64 *sn_pfx);
#ifdef CONFIG_SECURITY_INFINIBAND
void ib_security_destroy_port_pkey_list(struct ib_device *device);
void ib_security_release_port_pkey_list(struct ib_device *device);
void ib_security_cache_change(struct ib_device *device,
u8 port_num,
@ -204,7 +204,7 @@ void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
void ib_mad_agent_security_change(void);
#else
static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
static inline void ib_security_release_port_pkey_list(struct ib_device *device)
{
}

10
drivers/infiniband/core/device.c
View File

@ -253,6 +253,8 @@ static void ib_device_release(struct device *device)
ib_cache_release_one(dev);
kfree(dev->port_immutable);
}
ib_security_release_port_pkey_list(dev);
kfree(dev->port_pkey_list);
kfree(dev);
}
@ -522,7 +524,6 @@ static void cleanup_device(struct ib_device *device)
{
ib_cache_cleanup_one(device);
ib_cache_release_one(device);
kfree(device->port_pkey_list);
kfree(device->port_immutable);
}
@ -560,12 +561,10 @@ static int setup_device(struct ib_device *device)
if (ret) {
dev_warn(&device->dev,
"Couldn't set up InfiniBand P_Key/GID cache\n");
goto pkey_cleanup;
return ret;
}
return 0;
pkey_cleanup:
kfree(device->port_pkey_list);
port_cleanup:
kfree(device->port_immutable);
return ret;
@ -682,9 +681,6 @@ void ib_unregister_device(struct ib_device *device)
ib_cache_cleanup_one(device);
ib_security_destroy_port_pkey_list(device);
kfree(device->port_pkey_list);
down_write(&lists_rwsem);
write_lock_irqsave(&device->client_data_lock, flags);
list_for_each_entry_safe(context, tmp, &device->client_data_list,

4
drivers/infiniband/core/security.c
View File

@ -558,13 +558,12 @@ void ib_security_cache_change(struct ib_device *device,
}
}
void ib_security_destroy_port_pkey_list(struct ib_device *device)
void ib_security_release_port_pkey_list(struct ib_device *device)
{
struct pkey_index_qp_list *pkey, *tmp_pkey;
int i;
for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
spin_lock(&device->port_pkey_list[i].list_lock);
list_for_each_entry_safe(pkey,
tmp_pkey,
&device->port_pkey_list[i].pkey_list,
@ -572,7 +571,6 @@ void ib_security_destroy_port_pkey_list(struct ib_device *device)
list_del(&pkey->pkey_index_list);
kfree(pkey);
}
spin_unlock(&device->port_pkey_list[i].list_lock);
}
}