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 81F7E1714A1; Thu, 15 Aug 2024 13:55:23 +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=1723730123; cv=none; b=uacLhdPh7lt/VUvgljctLhi+CxjW100XgXUd6pDGnr1X5fLXU+RwJyJ4s+JwyXxlbfxL9h1z0Yn3MTHcrahyLY5zuVryWdPvfJI6bqU8Cbt41oqHFheXlm9A2CUDIy8m4J//Jr9bFqV8KMBEFvSvWech0rrRf8ftL3JleJy5XTY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723730123; c=relaxed/simple; bh=XqzhuxwM7ozlU/Q20rkoCjO566+KK0bFRvO0uYxTvZY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qvyxyIGeg46UpA8TcyD2oO92Bl9aIVGAfNXb9tr5pqC8LyM9JvWQwgIkPZy4YxtBVcKkc/CrC/Qt80oga/bXaNjiq4L/sqdhWmiWAT7/xdRJ67+FtMfvtKWlQWDXMpXwv/mPWHxthGZLkFuc9SfkbQEaN40QkbzdfFlYLK3+Ltg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TClAuo2R; 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="TClAuo2R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E318FC32786; Thu, 15 Aug 2024 13:55:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723730123; bh=XqzhuxwM7ozlU/Q20rkoCjO566+KK0bFRvO0uYxTvZY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TClAuo2Rs63CPh81LMIciVLv9Sx/npLVx6+JAFi7D+xO3vJ2s3/vy8+NUWpadshOX JO832CPapQrKzRXK3VOn3BIo74Ll9DCHCddxDI70Og6T85SZgpgkDZKnpft12Uq2wy qjbQs1l+7WKAAi5cqvxkKq/m/SI1Be5/Jx/T6LG4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jay Buddhabhatti , Michal Simek , Sasha Levin Subject: [PATCH 5.15 311/484] drivers: soc: xilinx: check return status of get_api_version() Date: Thu, 15 Aug 2024 15:22:49 +0200 Message-ID: <20240815131953.419758711@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240815131941.255804951@linuxfoundation.org> References: <20240815131941.255804951@linuxfoundation.org> User-Agent: quilt/0.67 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jay Buddhabhatti [ Upstream commit 9b003e14801cf85a8cebeddc87bc9fc77100fdce ] Currently return status is not getting checked for get_api_version and because of that for x86 arch we are getting below smatch error. CC drivers/soc/xilinx/zynqmp_power.o drivers/soc/xilinx/zynqmp_power.c: In function 'zynqmp_pm_probe': drivers/soc/xilinx/zynqmp_power.c:295:12: warning: 'pm_api_version' is used uninitialized [-Wuninitialized] 295 | if (pm_api_version < ZYNQMP_PM_VERSION) | ^ CHECK drivers/soc/xilinx/zynqmp_power.c drivers/soc/xilinx/zynqmp_power.c:295 zynqmp_pm_probe() error: uninitialized symbol 'pm_api_version'. So, check return status of pm_get_api_version and return error in case of failure to avoid checking uninitialized pm_api_version variable. Fixes: b9b3a8be28b3 ("firmware: xilinx: Remove eemi ops for get_api_version") Signed-off-by: Jay Buddhabhatti Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240515112345.24673-1-jay.buddhabhatti@amd.com Signed-off-by: Michal Simek Signed-off-by: Sasha Levin --- drivers/soc/xilinx/zynqmp_power.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/soc/xilinx/zynqmp_power.c b/drivers/soc/xilinx/zynqmp_power.c index f8c301984d4f9..2653d29ba829b 100644 --- a/drivers/soc/xilinx/zynqmp_power.c +++ b/drivers/soc/xilinx/zynqmp_power.c @@ -178,7 +178,9 @@ static int zynqmp_pm_probe(struct platform_device *pdev) u32 pm_api_version; struct mbox_client *client; - zynqmp_pm_get_api_version(&pm_api_version); + ret = zynqmp_pm_get_api_version(&pm_api_version); + if (ret) + return ret; /* Check PM API version number */ if (pm_api_version < ZYNQMP_PM_VERSION) -- 2.43.0