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7ae8d8ea94
For sysfs outputs, it's safer to use a new helper, sysfs_emit(), instead of the raw sprintf() & co. This patch replaces those usages straightforwardly with a new helper, sysfs_emit(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20220801170108.26340-5-tiwai@suse.de Signed-off-by: Mark Brown <broonie@kernel.org>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright(c) 2020 Intel Corporation. All rights reserved.
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//
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// Author: Cezary Rojewski <cezary.rojewski@intel.com>
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//
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#include <linux/pm_runtime.h>
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#include "core.h"
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static ssize_t fw_version_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct catpt_dev *cdev = dev_get_drvdata(dev);
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struct catpt_fw_version version;
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int ret;
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ret = pm_runtime_resume_and_get(cdev->dev);
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if (ret < 0 && ret != -EACCES)
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return ret;
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ret = catpt_ipc_get_fw_version(cdev, &version);
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pm_runtime_mark_last_busy(cdev->dev);
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pm_runtime_put_autosuspend(cdev->dev);
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if (ret)
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return CATPT_IPC_ERROR(ret);
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return sysfs_emit(buf, "%d.%d.%d.%d\n", version.type, version.major,
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version.minor, version.build);
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}
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static DEVICE_ATTR_RO(fw_version);
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static ssize_t fw_info_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct catpt_dev *cdev = dev_get_drvdata(dev);
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return sysfs_emit(buf, "%s\n", cdev->ipc.config.fw_info);
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}
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static DEVICE_ATTR_RO(fw_info);
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static struct attribute *catpt_attrs[] = {
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&dev_attr_fw_version.attr,
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&dev_attr_fw_info.attr,
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NULL
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};
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static const struct attribute_group catpt_attr_group = {
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.attrs = catpt_attrs,
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};
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const struct attribute_group *catpt_attr_groups[] = {
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&catpt_attr_group,
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NULL
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};
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