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 E09641BD018; Tue, 18 Jun 2024 12:43:23 +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=1718714604; cv=none; b=cRsB1Jxv6KdWN+sOEjxSy1SL6tyxZO+28Xh9F85pWNrgtcqMz2zetdApsCzaiceoHPKqID3yHjrbsrvaFUFd+yRW56VvI81v7evivKM0VN+HMkudnIHtAsZqXn3GyvrCemGAaNYcerxLITs6SVYLGp2k3oHKPZcTbdCjKy+CI1Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718714604; c=relaxed/simple; bh=aZuB6AepPPnXSjNK8WfaWoiTw7MpOVW2gI63k/mnaew=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E7UOM8odTLfyfuvrhn5LnaY7kf33GXDWulGxBDCbnsIsG68EVdwoAwWxQCOHy1tr/LaRigortfMAZznEgOhkH6QnkbWuVEgzd59vHaZgaJ26aTrBMDV7gbt2ee+ZfqohSG0MFU4eilSzGgpZ0mQg6MVnZj2Nl1Nr+ToBHvzozgA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ANzG1Kup; 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="ANzG1Kup" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00D10C32786; Tue, 18 Jun 2024 12:43:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718714603; bh=aZuB6AepPPnXSjNK8WfaWoiTw7MpOVW2gI63k/mnaew=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ANzG1Kup6N0IDl11j278g3kZdDUJp/Z1zUIAkqOOFrk1aUUo7HHlsSENrMZRozokB rr35g6vhjtZVubhphidISPnM9sKsVGcZwBqAYU1LTQV5eZBkE10Mt93aZVO3e+TPA7 skZnDK16Q9Pt36XwW6jWqpxLAURAfavgKPuS7OqlHyBZaTgAjw2o+fH2zTd1nmREtf h4mZentgPRBaieQY1YjPYLqH+FnDO2aA1hy1BUzI5r73llmeNUAeLP54j1apy9V3mk 79ckBNdhGDp+QbJcvMABNnEOSpyc12ZiPFvKYuPunjmju6SXjqWt7gKiGbLjCiA/Fp J4+jxZZ7YT/qQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Armin Wolf , "Rafael J . Wysocki" , Sasha Levin , rafael@kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 3/9] ACPI: EC: Avoid returning AE_OK on errors in address space handler Date: Tue, 18 Jun 2024 08:43:09 -0400 Message-ID: <20240618124318.3304798-3-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240618124318.3304798-1-sashal@kernel.org> References: <20240618124318.3304798-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 4.19.316 Content-Transfer-Encoding: 8bit From: Armin Wolf [ Upstream commit c4bd7f1d78340e63de4d073fd3dbe5391e2996e5 ] If an error code other than EINVAL, ENODEV or ETIME is returned by acpi_ec_read() / acpi_ec_write(), then AE_OK is incorrectly returned by acpi_ec_space_handler(). Fix this by only returning AE_OK on success, and return AE_ERROR otherwise. Signed-off-by: Armin Wolf [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/ec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 78f8b8b5a8099..7db62dec2ee53 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1348,8 +1348,10 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address, return AE_NOT_FOUND; case -ETIME: return AE_TIME; - default: + case 0: return AE_OK; + default: + return AE_ERROR; } } -- 2.43.0