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 43349611B for ; Sun, 28 May 2023 19:50:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C511AC433D2; Sun, 28 May 2023 19:50:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685303435; bh=0cFuVe62TUdFTUcmqFWj2tVetyVOeWgFydTmT08ljmk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cOACjQDL5hktdzhCviFcDCrPu7JqyxXi6nplGkoZCTFxqxXkATCIU7tLg/qrXI6FS oRPePt1sRFP9kBgm+1K2GqHadvFSOGtYgFfU0cy3sE/4DmjIsrk95oFsj3GUERwRU0 /I3BotGzpnuPLY3NMdRukQhoxcCH2SfyKpegl8do= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev Subject: [PATCH 5.15 67/69] regulator: mt6359: add read check for PMIC MT6359 Date: Sun, 28 May 2023 20:12:27 +0100 Message-Id: <20230528190830.892345742@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190828.358612414@linuxfoundation.org> References: <20230528190828.358612414@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: Sen Chu commit a511637502b1caa135046d0f8fdabd55a31af8ef upstream. Add hardware version read check for PMIC MT6359 Signed-off-by: Sen Chu --- drivers/regulator/mt6359-regulator.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/drivers/regulator/mt6359-regulator.c +++ b/drivers/regulator/mt6359-regulator.c @@ -951,9 +951,12 @@ static int mt6359_regulator_probe(struct struct regulator_config config = {}; struct regulator_dev *rdev; struct mt6359_regulator_info *mt6359_info; - int i, hw_ver; + int i, hw_ver, ret; + + ret = regmap_read(mt6397->regmap, MT6359P_HWCID, &hw_ver); + if (ret) + return ret; - regmap_read(mt6397->regmap, MT6359P_HWCID, &hw_ver); if (hw_ver >= MT6359P_CHIP_VER) mt6359_info = mt6359p_regulators; else