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 8B1F528E7 for ; Tue, 7 Feb 2023 12:58:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D51CFC433D2; Tue, 7 Feb 2023 12:58:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1675774714; bh=kzUS0FtuoAG5+oYBaLM27DVU3NOUt+8fQjfGm3/jNNk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X6zzxVITdL8j1Zv47RpjaUuoEIFD2+29zyQoI22qNjBUXZ/jCftx8lQ6LIXOXH7wo P8PjtA6p8y+yPyMQWUv+aI5WxpsQUI1I1fNwKir/yavfan0xVHT9LyaSF4hYMnjj0r ANOhOjAOKZEesH+BtT0eYAVz08de/uGYEBlfojc8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andy Shevchenko , Pierre-Louis Bossart , Mark Brown , Sasha Levin Subject: [PATCH 6.1 010/208] ASoC: Intel: sof_es8336: Drop reference count of ACPI device after use Date: Tue, 7 Feb 2023 13:54:24 +0100 Message-Id: <20230207125634.801832550@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230207125634.292109991@linuxfoundation.org> References: <20230207125634.292109991@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Andy Shevchenko [ Upstream commit 64e57b2195725c1ae2246a8a2ce224abb60620ac ] Theoretically the device might gone if its reference count drops to 0. This might be the case when we try to find the first physical node of the ACPI device. We need to keep reference to it until we get a result of the above mentioned call. Refactor the code to drop the reference count at the correct place. While at it, move to acpi_dev_put() as symmetrical call to the acpi_dev_get_first_match_dev(). Fixes: a164137ce91a ("ASoC: Intel: add machine driver for SOF+ES8336") Signed-off-by: Andy Shevchenko Acked-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230112112852.67714-6-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/intel/boards/sof_es8336.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/sound/soc/intel/boards/sof_es8336.c b/sound/soc/intel/boards/sof_es8336.c index 773e5d1d87d4..894b6610b9e2 100644 --- a/sound/soc/intel/boards/sof_es8336.c +++ b/sound/soc/intel/boards/sof_es8336.c @@ -681,7 +681,6 @@ static int sof_es8336_probe(struct platform_device *pdev) if (adev) { snprintf(codec_name, sizeof(codec_name), "i2c-%s", acpi_dev_name(adev)); - put_device(&adev->dev); dai_links[0].codecs->name = codec_name; /* also fixup codec dai name if relevant */ @@ -692,16 +691,19 @@ static int sof_es8336_probe(struct platform_device *pdev) return -ENXIO; } - ret = snd_soc_fixup_dai_links_platform_name(&sof_es8336_card, - mach->mach_params.platform); - if (ret) - return ret; - codec_dev = acpi_get_first_physical_node(adev); + acpi_dev_put(adev); if (!codec_dev) return -EPROBE_DEFER; priv->codec_dev = get_device(codec_dev); + ret = snd_soc_fixup_dai_links_platform_name(&sof_es8336_card, + mach->mach_params.platform); + if (ret) { + put_device(codec_dev); + return ret; + } + if (quirk & SOF_ES8336_JD_INVERTED) props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted"); -- 2.39.0