Hello: This patch was applied to bluetooth/bluetooth-next.git (master) by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>: On Wed, 5 Jul 2023 21:06:47 +0000 you wrote: > If hci_unregister_dev() frees the hci_dev object but hci_suspend_notifier > may still be accessing it, it can cause the program to crash. > Here's the call trace: > <4>[102152.653246] Call Trace: > <4>[102152.653254] hci_suspend_sync+0x109/0x301 [bluetooth] > <4>[102152.653259] hci_suspend_dev+0x78/0xcd [bluetooth] > <4>[102152.653263] hci_suspend_notifier+0x42/0x7a [bluetooth] > <4>[102152.653268] notifier_call_chain+0x43/0x6b > <4>[102152.653271] __blocking_notifier_call_chain+0x48/0x69 > <4>[102152.653273] __pm_notifier_call_chain+0x22/0x39 > <4>[102152.653276] pm_suspend+0x287/0x57c > <4>[102152.653278] state_store+0xae/0xe5 > <4>[102152.653281] kernfs_fop_write+0x109/0x173 > <4>[102152.653284] __vfs_write+0x16f/0x1a2 > <4>[102152.653287] ? selinux_file_permission+0xca/0x16f > <4>[102152.653289] ? security_file_permission+0x36/0x109 > <4>[102152.653291] vfs_write+0x114/0x21d > <4>[102152.653293] __x64_sys_write+0x7b/0xdb > <4>[102152.653296] do_syscall_64+0x59/0x194 > <4>[102152.653299] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 > > [...] Here is the summary with links: - Bluetooth: Fix hci_suspend_sync crash https://git.kernel.org/bluetooth/bluetooth-next/c/0c9bf63ad8ca You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html