[Bluetooth] Handle return values from driver core functions

Some return values of the driver core register and create functions
are not handled and so might cause unexpected problems.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 989b22d..c7e079d 100644 (file)
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -242,10 +242,14 @@ static void add_conn(void *data)
        struct hci_conn *conn = data;
        int i;
 
-       device_register(&conn->dev);
+       if (device_register(&conn->dev) < 0) {
+               BT_ERR("Failed to register connection device");
+               return;
+       }
 
        for (i = 0; conn_attrs[i]; i++)
-               device_create_file(&conn->dev, conn_attrs[i]);
+               if (device_create_file(&conn->dev, conn_attrs[i]) < 0)
+                       BT_ERR("Failed to create connection attribute");
 }
 
 void hci_conn_add_sysfs(struct hci_conn *conn)
@@ -312,7 +316,8 @@ int hci_register_sysfs(struct hci_dev *hdev)
                return err;
 
        for (i = 0; bt_attrs[i]; i++)
-               device_create_file(dev, bt_attrs[i]);
+               if (device_create_file(dev, bt_attrs[i]) < 0)
+                       BT_ERR("Failed to create device attribute");
 
        return 0;
 }

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index d56f60b..66fc621 100644 (file)
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2216,7 +2216,8 @@ static int __init l2cap_init(void)
                goto error;
        }
 
-       class_create_file(bt_class, &class_attr_l2cap);
+       if (class_create_file(bt_class, &class_attr_l2cap) < 0)
+               BT_ERR("Failed to create L2CAP info file");
 
        BT_INFO("L2CAP ver %s", VERSION);
        BT_INFO("L2CAP socket layer initialized");

diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 468df3b..ddc4e9d 100644 (file)
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -2058,7 +2058,8 @@ static int __init rfcomm_init(void)
 
        kernel_thread(rfcomm_run, NULL, CLONE_KERNEL);
 
-       class_create_file(bt_class, &class_attr_rfcomm_dlc);
+       if (class_create_file(bt_class, &class_attr_rfcomm_dlc) < 0)
+               BT_ERR("Failed to create RFCOMM info file");
 
        rfcomm_init_sockets();
 

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 220fee0..530cc41 100644 (file)
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -944,7 +944,8 @@ int __init rfcomm_init_sockets(void)
        if (err < 0)
                goto error;
 
-       class_create_file(bt_class, &class_attr_rfcomm);
+       if (class_create_file(bt_class, &class_attr_rfcomm) < 0)
+               BT_ERR("Failed to create RFCOMM info file");
 
        BT_INFO("RFCOMM socket layer initialized");
 

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 7714a2e..14b0f69 100644 (file)
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -967,7 +967,8 @@ static int __init sco_init(void)
                goto error;
        }
 
-       class_create_file(bt_class, &class_attr_sco);
+       if (class_create_file(bt_class, &class_attr_sco) < 0)
+               BT_ERR("Failed to create SCO info file");
 
        BT_INFO("SCO (Voice Link) ver %s", VERSION);
        BT_INFO("SCO socket layer initialized");