From nobody Mon May 25 06:40:08 2026 Received: from out-189.mta1.migadu.com (out-189.mta1.migadu.com [95.215.58.189]) (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 B58BF27A462 for ; Sun, 17 May 2026 16:28:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779035290; cv=none; b=hDJ5VUUqfHSKcgT7VcYC+MSQldZY0dInbaYUCwu7+bzTZwA0A0QOgNlE05hmZRcfDA+mzfBdrUnaKauWqL20GU4vhC8x0KRq9p+vBZiO8GqwQesQq2FhJFnK8f2FrtNS9BYi2iJyqWFhKbNWmJqeavB9rV1q/eQ6QmyUqagkzz0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779035290; c=relaxed/simple; bh=edBBxxv1poLSjMB8ohIHerWYeMF+vu/6TSkucKR5d08=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XJvOMDkwn+grMot3Olm/rLV6GTiV2nPpws7tnVcVUdbLfyQkEuKl7C9vs2Z/f0mC7eK+PUoEA2sJ56+sj+0c/7MoY5awilbK6XCwN/aJYjV+fqGa/o6dNs1zHQCRXys8L8WY7w8u0p6CtKvIQRn7v/+o8kdEkWuUyFO3SWp434w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=rXy10ZkO; arc=none smtp.client-ip=95.215.58.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="rXy10ZkO" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1779035285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=OwzbtTTYqiL4pShWiGkQxPeTW1obh95IMjB2QL15Rp8=; b=rXy10ZkOEqCQDYX2v8Vi3hfLe+jx5GNQok4yZq5qUYzdaeep1y4+Q7Ep9NGDf/bArE32ce G2CAhgid36ysZoaD6yqSOrtT7vKyZrCkFnCW9Gc6ouu7LEv7yu5kvQrC14DuH4gbtWpxcv XUX1NMWAuzRTsfkJClUhs7bjH5gfigc= From: Thorsten Blum To: Thorsten Blum , Herbert Xu , "David S. Miller" , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Lothar Rubusch Cc: stable@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] crypto: atmel-sha204a - fail on hwrng registration error in probe path Date: Sun, 17 May 2026 18:27:40 +0200 Message-ID: <20260517162740.1250-2-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1483; i=thorsten.blum@linux.dev; h=from:subject; bh=edBBxxv1poLSjMB8ohIHerWYeMF+vu/6TSkucKR5d08=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFmcb2rUm7NZGP7IlMtLr1APUWjtXP1c6NmBjnqx8zz5E zZ3rcnrKGVhEONikBVTZHkw68cM39Kayk0mETth5rAygQxh4OIUgIk4T2dkuMFke3GuyFuBVvew dtH9z7VfLg8Sjb4nJXKpY3LUF/OGNwx/hVWXbenaNdtQ/uzsyH96vVPevG4ICGk/4OB+3VYuXDm YAQA= X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" Commit 13909a0c8897 ("crypto: atmel-sha204a - provide the otp content") overwrote the hwrng registration return value when creating the sysfs group, which allowed atmel_sha204a_probe() to succeed even if devm_hwrng_register() failed. Return immediately when devm_hwrng_register() fails, and report both hwrng and sysfs registration errors with dev_err(). Adjust the sysfs error log message for consistency. Fixes: 13909a0c8897 ("crypto: atmel-sha204a - provide the otp content") Cc: stable@vger.kernel.org Signed-off-by: Thorsten Blum --- drivers/crypto/atmel-sha204a.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/atmel-sha204a.c b/drivers/crypto/atmel-sha204a.c index 37538b0fd7c2..12eb85b57380 100644 --- a/drivers/crypto/atmel-sha204a.c +++ b/drivers/crypto/atmel-sha204a.c @@ -183,12 +183,14 @@ static int atmel_sha204a_probe(struct i2c_client *cli= ent) i2c_priv->hwrng.quality =3D *quality; =20 ret =3D devm_hwrng_register(&client->dev, &i2c_priv->hwrng); - if (ret) - dev_warn(&client->dev, "failed to register RNG (%d)\n", ret); + if (ret) { + dev_err(&client->dev, "failed to register RNG (%d)\n", ret); + return ret; + } =20 ret =3D sysfs_create_group(&client->dev.kobj, &atmel_sha204a_groups); if (ret) { - dev_err(&client->dev, "failed to register sysfs entry\n"); + dev_err(&client->dev, "failed to create sysfs group (%d)\n", ret); return ret; }