diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/hid/bpf/hid_bpf_dispatch.c | 6 | ||||
-rw-r--r-- | drivers/hid/bpf/hid_bpf_struct_ops.c | 2 | ||||
-rw-r--r-- | drivers/hid/hid-core.c | 8 |
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c index 2df31decaac3..c026248e3d73 100644 --- a/drivers/hid/bpf/hid_bpf_dispatch.c +++ b/drivers/hid/bpf/hid_bpf_dispatch.c @@ -506,13 +506,17 @@ void hid_bpf_destroy_device(struct hid_device *hdev) hdev->bpf.destroyed = true; __hid_bpf_ops_destroy_device(hdev); + + synchronize_srcu(&hdev->bpf.srcu); + cleanup_srcu_struct(&hdev->bpf.srcu); } EXPORT_SYMBOL_GPL(hid_bpf_destroy_device); -void hid_bpf_device_init(struct hid_device *hdev) +int hid_bpf_device_init(struct hid_device *hdev) { INIT_LIST_HEAD(&hdev->bpf.prog_list); mutex_init(&hdev->bpf.prog_list_lock); + return init_srcu_struct(&hdev->bpf.srcu); } EXPORT_SYMBOL_GPL(hid_bpf_device_init); diff --git a/drivers/hid/bpf/hid_bpf_struct_ops.c b/drivers/hid/bpf/hid_bpf_struct_ops.c index 8063db1c8d62..d34731a1b457 100644 --- a/drivers/hid/bpf/hid_bpf_struct_ops.c +++ b/drivers/hid/bpf/hid_bpf_struct_ops.c @@ -214,6 +214,7 @@ static int hid_bpf_reg(void *kdata) list_add_rcu(&ops->list, &hdev->bpf.prog_list); else list_add_tail_rcu(&ops->list, &hdev->bpf.prog_list); + synchronize_srcu(&hdev->bpf.srcu); out_unlock: mutex_unlock(&hdev->bpf.prog_list_lock); @@ -244,6 +245,7 @@ static void hid_bpf_unreg(void *kdata) mutex_lock(&hdev->bpf.prog_list_lock); list_del_rcu(&ops->list); + synchronize_srcu(&hdev->bpf.srcu); reconnect = hdev->bpf.rdesc_ops == ops; if (reconnect) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 0775a32f5272..ad08289752da 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2875,9 +2875,15 @@ struct hid_device *hid_allocate_device(void) mutex_init(&hdev->ll_open_lock); kref_init(&hdev->ref); - hid_bpf_device_init(hdev); + ret = hid_bpf_device_init(hdev); + if (ret) + goto out_err; return hdev; + +out_err: + hid_destroy_device(hdev); + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(hid_allocate_device); |