Bluetooth: Fix possible NULL pointer dereference
Bluetooth: Fix possible NULL pointer dereference

Checking conn->pending_sec_level if there is no connection leads to potential
null pointer dereference. Don't process pin_code_request_event at all if no
connection exists.

Signed-off-by: Waldemar Rymarkiewicz <35d304b3075d514779e58e47500a1aa9e0a46d68@gmail.com>
Acked-by: Marcel Holtmann <44592b4eea36663c86b994bb0ea99d15309c1c7d@holtmann.org>
Signed-off-by: Gustavo F. Padovan <8463bae6aa74c6c37654a5ac7ce3bbb9fe6ffff8@profusion.mobi>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs