Re: [PATCH] Bluetooth: btmtksdio: fix usage_count leak when autosuspend_delay is negative

[email protected] Fri, 07 Aug 2026 16:30:13 +0000

Newsgroups	org.infradead.lists.linux-mediatek,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-bluetooth,org.kernel.vger.linux-kernel
Message-ID	<178612021313.1887768.17053811482206662967.git-patchwork-notify@kernel.org>

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <[email protected]>:

On Fri,  7 Aug 2026 23:14:47 +0800 you wrote:
> btmtksdio_setup() calls pm_runtime_use_autosuspend() when runtime PM
> is supported, but btmtksdio_remove() does not call the matching
> pm_runtime_dont_use_autosuspend() when removing the device.
> 
> If the autosuspend delay is set to a negative value while autosuspend
> is enabled, the runtime PM core increments usage_count to prevent
> runtime suspend. Without calling pm_runtime_dont_use_autosuspend()
> during driver teardown, this reference is not dropped and usage_count
> remains unbalanced.
> 
> [...]

Here is the summary with links:
  - Bluetooth: btmtksdio: fix usage_count leak when autosuspend_delay is negative
    https://git.kernel.org/bluetooth/bluetooth-next/c/1e4acc44552b

You are awesome, thank you!
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