From patchwork Tue Sep 10 18:36:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 13799216 Received: from smtp.smtpout.orange.fr (smtp-25.smtpout.orange.fr [80.12.242.25]) (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 DBC6B1A38FD; Tue, 10 Sep 2024 18:36:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725993385; cv=none; b=nelSWTgjvRG2mLjZbLAwgHA8Ybl3/eL2cfxqSrTegWS+fKmJ3EwKK7W3+rEdszjzqWXiJdt+X3XvxnIUDYNVoes5AW0ulPi3MMAZ59R4xpCy9CIGDWskXJTz6mEQkbW+0QVRxevrirDGjYt6AeU02owxT8++8PcV/cs0EJlG87c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725993385; c=relaxed/simple; bh=EMFEHniz3H66HIbuJVBw3wQcWSFqvEpY/2FLIbZowmY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=UDoW6tn2ASwFR/Jgkb0bcT1bfo9vqRtwPPtdYljhy+BptzbjcDN12aAKYt24x0v6IW/3sQQa6D/0Cw8ADze6Piw/DATlsb0Gmyvv69aK5qdmiAnpG/Ons1BCjAa9UPd4b3Fs82Y7sdUuI7DGfXHNuiXQt0pGM2wc5Bu6RfB149A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr; spf=pass smtp.mailfrom=wanadoo.fr; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b=VbDAOMQc; arc=none smtp.client-ip=80.12.242.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b="VbDAOMQc" Received: from fedora.home ([90.11.132.44]) by smtp.orange.fr with ESMTPA id o5ilstG1TLYfJo5ilsAruj; Tue, 10 Sep 2024 20:36:14 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1725993374; bh=3+hlWWz7FHyIV2LbvTYdfP31igBbCZjEUwW1GIeQCjs=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=VbDAOMQc2Mj3rpaP0VoioUSVRdJOcn28zLOV14J8AhAhV4CT71W52bHuKanDWbxvs 9Eze+IBCs0cvLuqD9R+MhEcgaX/6e6rc423wH0l/Jkf4EQK95LBXLa3oN9pKyy+HbR LMiZXPZOvXIaxw/m8Kc3TJzwCNApumUqFvjkLCkdxzCoCNw37p6hLlihaythtT0gTI CyNhSjE6yUSqSlSF3eboX7Q6acqATwnlOyTPfBmFmlYzeTroxJwszXxG3qqHz02Iap CILqeT07J5VIXXGybX0YdSoqCSr65d09HIxa0Pzs0di2yIvIjpcBaMorkOHMxOUV8W SkMbfzmGyJ5yA== X-ME-Helo: fedora.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Tue, 10 Sep 2024 20:36:14 +0200 X-ME-IP: 90.11.132.44 From: Christophe JAILLET To: Jonathan Cameron , Lars-Peter Clausen , David Heidelberg , Dmitry Osipenko Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , Jonathan Cameron , linux-iio@vger.kernel.org Subject: [PATCH] iio: light: al3010: Fix an error handling path in al3010_probe() Date: Tue, 10 Sep 2024 20:36:06 +0200 Message-ID: X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 If i2c_smbus_write_byte_data() fails in al3010_init(), al3010_set_pwr(false) is not called. In order to avoid such a situation, move the devm_add_action_or_reset() witch calls al3010_set_pwr(false) right after a successful al3010_set_pwr(true). Fixes: c36b5195ab70 ("iio: light: add Dyna-Image AL3010 driver") Signed-off-by: Christophe JAILLET --- Compile tested only. This patch is speculative, review with care --- drivers/iio/light/al3010.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/iio/light/al3010.c b/drivers/iio/light/al3010.c index 53569587ccb7..7cbb8b203300 100644 --- a/drivers/iio/light/al3010.c +++ b/drivers/iio/light/al3010.c @@ -87,7 +87,12 @@ static int al3010_init(struct al3010_data *data) int ret; ret = al3010_set_pwr(data->client, true); + if (ret < 0) + return ret; + ret = devm_add_action_or_reset(&data->client->dev, + al3010_set_pwr_off, + data); if (ret < 0) return ret; @@ -190,12 +195,6 @@ static int al3010_probe(struct i2c_client *client) return ret; } - ret = devm_add_action_or_reset(&client->dev, - al3010_set_pwr_off, - data); - if (ret < 0) - return ret; - return devm_iio_device_register(&client->dev, indio_dev); }