Bluetooth: Fix using NULL inquiry entry

If entry wasn't found in the hci_inquiry_cache_lookup_resolve do not
resolve the name.This will fix a kernel crash when trying to use NULL
pointer.

Cc: stable@vger.kernel.org
Signed-off-by: Ram Malovany <ramm@ti.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 248632cec11df99048dfb11f66fa6bdda8de7f40..b64cfa213bd680387634b49ebcb9ce00a42d07a0 100644 (file)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1365,6 +1365,9 @@ static bool hci_resolve_next_name(struct hci_dev *hdev)
                return false;
 
        e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
+       if (!e)
+               return false;
+
        if (hci_resolve_name(hdev, e) == 0) {
                e->name_state = NAME_PENDING;
                return true;