linux-kernel - Re: [PATCH] mailbox: mtk-cmdq: Fix pm_runtime_get

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Date: Mon, 29 Apr 2024 09:51:25 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: "Jason-JH.Lin" <jason-jh.lin@...iatek.com>,
 Jassi Brar <jassisinghbrar@...il.com>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Matthias Brugger <matthias.bgg@...il.com>
Cc: Jason-ch Chen <jason-ch.chen@...iatek.com>,
 Singo Chang <singo.chang@...iatek.com>, Nancy Lin <nancy.lin@...iatek.com>,
 Shawn Sung <shawn.sung@...iatek.com>, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH] mailbox: mtk-cmdq: Fix pm_runtime_get_sync() warning in
 mbox shutdown

Il 26/04/24 04:01, Jason-JH.Lin ha scritto:
> The return value of pm_runtime_get_sync() in cmdq_mbox_shutdown()
> will return 1 when pm runtime state is active, and we don't want to
> get the warning message in this case.
> 
> So we change the return value < 0 for WARN_ON().
> 
> Fixes: 8afe816b0c99 ("mailbox: mtk-cmdq-mailbox: Implement Runtime PM with autosuspend")
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>