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 825CA29D28A; Tue, 26 Aug 2025 13:12:34 +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=1756213954; cv=none; b=cUC5Wyyfo/v1a0eSRBMnmY+VCRi0mqpu9PpUnMdckb6yVNWrfh1vODrjhbECa8Lk+4d0p+gMWPZT31DXEkG/ngut5wXB4Evp8uTHzBguHpDSQpQ7bZfj2YncOmCu5BDv4ytlyZDg9l62+4o2KULzj1RyVCl29pHnm7b8UYtW1QA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756213954; c=relaxed/simple; bh=W3D1Es0iCMkCNLRBj1xHV2A2WOnFtSuUvJ3nqc63TlA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tMjPcbKQY3jTLh8J59brvKyHv0EJ86VHeq8Ssc5hy56Slq1ObpIvhWUK3hgepQNDEzMqAoJA/GICYq26LUA44THSsBhp/jz0oNQoeB74YAtfkiEBfJVM1A/mF51SQS6T7WVyYNKuS8dWx7bDeNQWp2Nq0p+88rh9xVCCYL69imI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dNCXb7Vl; 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="dNCXb7Vl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1452BC4CEF1; Tue, 26 Aug 2025 13:12:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756213954; bh=W3D1Es0iCMkCNLRBj1xHV2A2WOnFtSuUvJ3nqc63TlA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dNCXb7VlEAE+2yr9jd0oL8c873hKoTJ5WwuEsjo5tOKZdgViAfdoN2Bvn27s44DII 4lfSMB6tneBesuLt16mahV6VBc2WjiZpeYvIXJkBe21hexEZR0kLjRhHbRWK5bQdU6 A4vjdVJCWUpC2eecBypH5onr+6gTmmdeZrfsyRTk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Jonathan Cameron , Sasha Levin Subject: [PATCH 6.6 541/587] iio: imu: inv_icm42600: use = { } instead of memset() Date: Tue, 26 Aug 2025 13:11:30 +0200 Message-ID: <20250826111006.779356374@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore 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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Lechner [ Upstream commit 352112e2d9aab6a156c2803ae14eb89a9fd93b7d ] Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner Reviewed-by: Nuno Sá Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-16-ebb2d0a24302@baylibre.com Signed-off-by: Jonathan Cameron Stable-dep-of: dfdc31e7ccf3 ("iio: imu: inv_icm42600: change invalid data error to -EBUSY") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 5 ++--- drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 5 ++--- 2 files changed, 4 insertions(+), 6 deletions(-) --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c @@ -755,7 +755,8 @@ int inv_icm42600_accel_parse_fifo(struct const int8_t *temp; unsigned int odr; int64_t ts_val; - struct inv_icm42600_accel_buffer buffer; + /* buffer is copied to userspace, zeroing it to avoid any data leak */ + struct inv_icm42600_accel_buffer buffer = { }; /* parse all fifo packets */ for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) { @@ -774,8 +775,6 @@ int inv_icm42600_accel_parse_fifo(struct inv_sensors_timestamp_apply_odr(ts, st->fifo.period, st->fifo.nb.total, no); - /* buffer is copied to userspace, zeroing it to avoid any data leak */ - memset(&buffer, 0, sizeof(buffer)); memcpy(&buffer.accel, accel, sizeof(buffer.accel)); /* convert 8 bits FIFO temperature in high resolution format */ buffer.temp = temp ? (*temp * 64) : 0; --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c @@ -767,7 +767,8 @@ int inv_icm42600_gyro_parse_fifo(struct const int8_t *temp; unsigned int odr; int64_t ts_val; - struct inv_icm42600_gyro_buffer buffer; + /* buffer is copied to userspace, zeroing it to avoid any data leak */ + struct inv_icm42600_gyro_buffer buffer = { }; /* parse all fifo packets */ for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) { @@ -786,8 +787,6 @@ int inv_icm42600_gyro_parse_fifo(struct inv_sensors_timestamp_apply_odr(ts, st->fifo.period, st->fifo.nb.total, no); - /* buffer is copied to userspace, zeroing it to avoid any data leak */ - memset(&buffer, 0, sizeof(buffer)); memcpy(&buffer.gyro, gyro, sizeof(buffer.gyro)); /* convert 8 bits FIFO temperature in high resolution format */ buffer.temp = temp ? (*temp * 64) : 0;