From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 997041482F5; Wed, 7 May 2025 18:59:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746644358; cv=none; b=HuIZcIS6nDTdH2vvWPeAZnK3wMlKoRmsLQhkes4KZGKMaN6H0hUynRoRMiyJUlBI4Ov/gZtDjnu7WAhZ0sNI0gYofjrwZX2vN3/cWjBOKCvUeI3GmkbNXYzlpmERpIUn9x21Jbkdwymg8hEm3oYdhleS1uY6pPdqetzmRcBIZPs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746644358; c=relaxed/simple; bh=hjeH7+HRDPAlDDiAhzLXsZ3zHQhzKq3nKjAE3pZVqi0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P22KW7LQg7kdgvs78u5j2Fkdc4HoQ7nYPr5SKVUDYoEf7MPlOkN/VAs1/wYTtl/1RS05YwzGst6cotY5No1DE1NPU2X2t6HcFWI+RTmmuLrOfO+vChhtqkCAvu2d77KrIepp3paSaCx9DsInHSIiuQLGhQVNfLy8m5BWWfOYhBA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MlmIBxzL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MlmIBxzL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 165D1C4CEE2; Wed, 7 May 2025 18:59:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1746644358; bh=hjeH7+HRDPAlDDiAhzLXsZ3zHQhzKq3nKjAE3pZVqi0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MlmIBxzL2TaB8Si/kMV4EA7ufcFQolOW+a43cfDPzC1/ijwQ0xzt7DkD4cRJJaTWf c6UR3vKMe1bVX+EbFcGoWESl1S18pKBtxvbN1q+SrRc3zbjgzXZgSHfSS4HhU108Xw sNmF7R1vLfXbvwF/bE96/s7bikPovP4P3WJFUkhg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Clark Wang , Carlos Song , Andi Shyti Subject: [PATCH 6.12 018/164] i2c: imx-lpi2c: Fix clock count when probe defers Date: Wed, 7 May 2025 20:38:23 +0200 Message-ID: <20250507183821.599944128@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250507183820.781599563@linuxfoundation.org> References: <20250507183820.781599563@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Clark Wang commit b1852c5de2f2a37dd4462f7837c9e3e678f9e546 upstream. Deferred probe with pm_runtime_put() may delay clock disable, causing incorrect clock usage count. Use pm_runtime_put_sync() to ensure the clock is disabled immediately. Fixes: 13d6eb20fc79 ("i2c: imx-lpi2c: add runtime pm support") Signed-off-by: Clark Wang Signed-off-by: Carlos Song Cc: # v4.16+ Link: https://lore.kernel.org/r/20250421062341.2471922-1-carlos.song@nxp.com Signed-off-by: Andi Shyti Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-imx-lpi2c.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -652,9 +652,9 @@ static int lpi2c_imx_probe(struct platfo return 0; rpm_disable: - pm_runtime_put(&pdev->dev); - pm_runtime_disable(&pdev->dev); pm_runtime_dont_use_autosuspend(&pdev->dev); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); return ret; }