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>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 248632cec11d..b64cfa213bd6 100644
--- 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;