From nobody Sat Nov 23 09:21:18 2024 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 51503202631; Wed, 13 Nov 2024 17:57:41 +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=1731520661; cv=none; b=ZnWNHl5YlbpVcHaurJk5aNvtysQ0rGsoT7i3NWvIX3kaQZ5bX+DPNHloNk+Y4wY3r/4p11Y/S9GvxM3s8bF9fEuISpx63qpAyrDAXLwyC9JdI+LClGIrbOk2EOHTzlhMITBz9g1RgZlBXloSm6cMEN8xsOJ2LvLkIAHgBnECioc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731520661; c=relaxed/simple; bh=hsej9QZ2ZJJ5VqKk63f8ryGQSXEiV+HHzptb0uSPdo8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=U4TO3H9VPk8jzcVo5KlCkSM5dCEF4t/YoohlKKp0pPmfRHlVB2uVhuSRZf2TTss5zft3vxDPqV2JP3p/153m2YpTYgdAZWkf47aGwjYoKaUFWllsy72pOUAYTcrdPF4oG0phtYYY1Aa6hL6gDiCEP07b1ZW6/p7OlTrmamKulXQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VQhXqMwj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VQhXqMwj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67B13C4CED0; Wed, 13 Nov 2024 17:57:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731520661; bh=hsej9QZ2ZJJ5VqKk63f8ryGQSXEiV+HHzptb0uSPdo8=; h=From:To:Cc:Subject:Date:From; b=VQhXqMwjpPCkrPrnlZicj4GTGfR/K+KldpPHdjD2omQxPmHz0tFKEm41XQcXgxDAa 3wQRG7WsdxDifZtXCHF6AjdB9W4hj3ijfX1FsWDfgGDLwyyuhiDI5AlF7slaAA39c/ HMHY7iXqMgt8aTKRXmiGoF+0XZ/fc26IiAKsadKJxlSttopgEyK22KoE10KS/nPFYa nTG/Eslh8XF+TrJMULR2yXLDfyOq3Nwna6IlgbU9XBAFUSrmRb/JtJ4Mg/gQZI4Tsu zd5QPE49iqk3FGnPLrbyI9y2Yfl3M2CbJUpxPU3hojao3PlQaLYf3ljhPFk4mEOFoC E9uGDGLZbNc+g== From: Arnd Bergmann To: Kiseok Jo , Mark Brown Cc: Arnd Bergmann , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Tang Bin , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [v2] ASoC: sma1307: fix uninitialized variable refence Date: Wed, 13 Nov 2024 18:57:13 +0100 Message-Id: <20241113175734.2443315-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann When firmware loading is disabled, gcc warns that the local 'fw' variable fails to get initialized: sound/soc/codecs/sma1307.c: In function 'sma1307_setting_loaded.isra': sound/soc/codecs/sma1307.c:1717:12: error: 'fw' is used uninitialized [-Wer= ror=3Duninitialized] 1717 | if (!fw) { | ^ sound/soc/codecs/sma1307.c:1712:32: note: 'fw' was declared here 1712 | const struct firmware *fw; Check the return code from request_firmware() to ensure that the firmware is correctly set, and drop the incorrect release_firmware() on that uninitialized data. Fixes: 576c57e6b4c1 ("ASoC: sma1307: Add driver for Iron Device SMA1307") Signed-off-by: Arnd Bergmann --- [v2] check error value correctly --- sound/soc/codecs/sma1307.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/sma1307.c b/sound/soc/codecs/sma1307.c index 81638768ac12..f2cea6186d98 100644 --- a/sound/soc/codecs/sma1307.c +++ b/sound/soc/codecs/sma1307.c @@ -1711,13 +1711,13 @@ static void sma1307_setting_loaded(struct sma1307_p= riv *sma1307, const char *fil { const struct firmware *fw; int *data, size, offset, num_mode; + int ret; =20 - request_firmware(&fw, file, sma1307->dev); + ret =3D request_firmware(&fw, file, sma1307->dev); =20 - if (!fw) { - dev_err(sma1307->dev, "%s: failed to read \"%s\"\n", - __func__, setting_file); - release_firmware(fw); + if (ret) { + dev_err(sma1307->dev, "%s: failed to read \"%s\": %pe\n", + __func__, setting_file, ERR_PTR(ret)); sma1307->set.status =3D false; return; } else if ((fw->size) < SMA1307_SETTING_HEADER_SIZE) { --=20 2.39.5