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Date: Fri, 02 Dec 2022 21:25:40 +0000 From: patchwork-bot+bluetooth@...nel.org To: Chen Zhongjin <chenzhongjin@...wei.com> Cc: linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, marcel@...tmann.org, johan.hedberg@...il.com, luiz.dentz@...il.com, davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com Subject: Re: [PATCH] Bluetooth: Fix not cleanup led when bt_init fails Hello: This patch was applied to bluetooth/bluetooth-next.git (master) by Luiz Augusto von Dentz <luiz.von.dentz@...el.com>: On Tue, 29 Nov 2022 17:25:56 +0800 you wrote: > bt_init() calls bt_leds_init() to register led, but if it fails later, > bt_leds_cleanup() is not called to unregister it. > > This can cause panic if the argument "bluetooth-power" in text is freed > and then another led_trigger_register() tries to access it: > > BUG: unable to handle page fault for address: ffffffffc06d3bc0 > RIP: 0010:strcmp+0xc/0x30 > Call Trace: > <TASK> > led_trigger_register+0x10d/0x4f0 > led_trigger_register_simple+0x7d/0x100 > bt_init+0x39/0xf7 [bluetooth] > do_one_initcall+0xd0/0x4e0 > > [...] Here is the summary with links: - Bluetooth: Fix not cleanup led when bt_init fails https://git.kernel.org/bluetooth/bluetooth-next/c/63d70ae785a9 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
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