From nobody Fri Dec 19 06:19:15 2025 Received: from mail-wr1-f48.google.com (mail-wr1-f48.google.com [209.85.221.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4282A28BA96 for ; Wed, 23 Apr 2025 17:22:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745428932; cv=none; b=h+L2fU1aIfEH0vw0sannbBWr7+q4JxqSl4FZqdlRFtlrHn6gDjUQfe3DwUpVZCnAoDhxbeXtRLgWTK3nRCxnFOyjajNvMCqeiKjWFYsIhM7a2On47JpVMBno4sF2ko4HQtZXuLas7IVw1i8d04PDZw7TcWJmrfRCZeHl61o8Npk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745428932; c=relaxed/simple; bh=oJSYqGkH8eJ7nnI4eONslaNCAK4zDKV2Mf6cPlywreQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=dcTo0M1cH1sSz2GyzT2QVNaD2FDY6rCA1pFtF47Bam6RSDj4EhTU2Tl0DL43M78es5U3PajVaO1db2QcuIOm6rJcOD7dslcTrAOK8u4uDMSz2716n5muK/EiSqbBZJTtypry3xtsuyHvD8bZ19hAE59Xj9dy4F9gSeUWuCLpHYQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=PIsTen+t; arc=none smtp.client-ip=209.85.221.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="PIsTen+t" Received: by mail-wr1-f48.google.com with SMTP id ffacd0b85a97d-3912fdddf8fso937729f8f.1 for ; Wed, 23 Apr 2025 10:22:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1745428928; x=1746033728; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:message-id:subject:cc :to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=I/fWatsoyC3ISeEvWnCn+x63EPNqLu0aQi3bXvQHx9s=; b=PIsTen+txJ4y14/TzBIiwRaPQhjL1Zx7srnlszJHjVqrqoKe6tLh23V9tXqmqwAVRo 7wEO3Vmo8s28ddYy9Ypyap4toFXwh/GUYi8/LOXySKfHS38D+4kGvEwhLks/LmtHT5ln orS+xQg2/vhfolUbGfDwoSmMuNtf0HNlH42P8h+BtfjE8c9FCHMaNXs0iedaq8VNM0N8 xMrapZFwNbFHuxIU9PWus5fWm/CQyIY8oFLGwgqb9ckR3+3z1AnDFcztUPi8OU7ESN5D jrDw6efb0GulF2VEsgAn9kNv6cIk3etFBwxRzW3u8LwJYToDTrSyxUf9RF7V4SgefNFI gOaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745428928; x=1746033728; h=in-reply-to:content-disposition:mime-version:message-id:subject:cc :to:from:date:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=I/fWatsoyC3ISeEvWnCn+x63EPNqLu0aQi3bXvQHx9s=; b=fCJnJd8xGZa75Q3SJZHvmeYa3sLItjV858/gYm2Yqf9AkDph55dU/s0GjZ+rEK54qQ dwnBJBbEmQiGiyUlG2rWvub0+Uiwa41Pf9oPFma/YoLKLMQaUcIkoUdA5MT/rZl/J+pZ azzlkgLkvq14BvsBi/UsLHSw9pAJkKUmaRRe6WUJp3S1kI9a09JIA0QNnjIP31NkGo79 ylKhYlg3PqYUeowP6J5H0g5PyJx2EF6sRaeQO4H/UopcWnGaOrDPv+uD0Hwy4KXCur20 8x3+nztmEtksseelaFPPFFtr9y5Z8J7DXP8TfbeSLPzYAZbCsHv4hMiy5jRGicp/nmeU 6gMg== X-Forwarded-Encrypted: i=1; AJvYcCU4cMnURrr61l6FnQE1fv9B9AL+paPTUdtPEnnQoVJYd+Ti/XUv4vqy1rN3luCktqO/2n87oqOCwCxJ/ig=@vger.kernel.org X-Gm-Message-State: AOJu0Ywlu7qz97AIJ7cU93PEC/sGqCJMQ9Rmoa0Saqxg7Xg001T3s253 JzY/YN2isaexoSP0r+NEpIdxvLq2p4hAY4SVIA8u31DapbKCwHAifEXXg3FL6z0= X-Gm-Gg: ASbGnctC+Ahel7sCHWaKpIBEFxDbaKx7bKEJqC0VzzLUgdxfcbjyt6HUmaLEXs7Ls3z 3XcO0LsR8WqUqKbUl0qkq1R70emIoACu2e+2PKb1pVkMDq9RQrfNXa1Od3wWJN+QAiOaE2pS8ei ANF7fEd7F+l68S3yad3EUzHOEGT+5XD5CTSj1oPeWvhV/Yc+ce8dBaH5JytXZ8oPqPk7MVLqht0 DD8cFHO0lbg91DcTsuspQoMwM/10OiMuclGN48fRAToi5sF6JVyv+OPIw3DHWIqOlhzgo9zTz5c tC2CizB8cNirigRoGxux6YEsWMC7xWedJzhuHbycqoiZtQ== X-Google-Smtp-Source: AGHT+IHpb3M2AX8ubADr1y8Clnmgy74dWjubTc/OZ082AsTXoWv1+RFKxrQiRpJTvsF1zuzQls4pfQ== X-Received: by 2002:a05:6000:1acf:b0:39a:c9ae:9eea with SMTP id ffacd0b85a97d-3a06c6bd8cemr18787f8f.10.1745428928559; Wed, 23 Apr 2025 10:22:08 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-39efa493115sm19460396f8f.78.2025.04.23.10.22.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Apr 2025 10:22:08 -0700 (PDT) Date: Wed, 23 Apr 2025 20:22:05 +0300 From: Dan Carpenter To: Bjorn Andersson , Naresh Kamboju Cc: Mathieu Poirier , linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Greg Kroah-Hartman , stable@vger.kernel.org, patches@lists.linux.dev, torvalds@linux-foundation.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de, conor@kernel.org, hargar@microsoft.com, broonie@kernel.org, Arnd Bergmann , Liam Girdwood , Frieder Schrempf , Marek Vasut , Anders Roxell Subject: [PATCH] rpmsg: qcom_smd: Fix uninitialized return variable in __qcom_smd_send() Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email haha only kidding Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The "ret" variable isn't initialized if we don't enter the loop. For example, if "channel->state" is not SMD_CHANNEL_OPENED. Fixes: 33e3820dda88 ("rpmsg: smd: Use spinlock in tx path") Signed-off-by: Dan Carpenter Reported-by: Linux Kernel Functional Testing Reviewed-by: Abel Vesa Tested-by: Naresh Kamboju --- Naresh, could you test this patch and see if it fixes the boot problems you saw? drivers/rpmsg/qcom_smd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 40d386809d6b..bb161def3175 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -746,7 +746,7 @@ static int __qcom_smd_send(struct qcom_smd_channel *cha= nnel, const void *data, __le32 hdr[5] =3D { cpu_to_le32(len), }; int tlen =3D sizeof(hdr) + len; unsigned long flags; - int ret; + int ret =3D 0; =20 /* Word aligned channels only accept word size aligned data */ if (channel->info_word && len % 4) --=20 2.47.2