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Message-Id: <20220816085502.25295-1-zhaoxiao@uniontech.com>
Date:   Tue, 16 Aug 2022 16:55:02 +0800
From:   zhaoxiao <zhaoxiao@...ontech.com>
To:     perex@...ex.cz, tiwai@...e.com
Cc:     pierre-louis.bossart@...ux.intel.com, lgirdwood@...il.com,
        peter.ujfalusi@...ux.intel.com, yung-chuan.liao@...ux.intel.com,
        ranjani.sridharan@...ux.intel.com, kai.vehmanen@...ux.intel.com,
        daniel.baluta@....com, broonie@...nel.org,
        guennadi.liakhovetski@...ux.intel.com,
        sound-open-firmware@...a-project.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, zhaoxiao <zhaoxiao@...ontech.com>
Subject: [PATCH] ASoC: intel: Replace scnprintf() calls with sysfs_emit_at()

For sysfs outputs, it's safer to use a new helper, sysfs_emit(),
instead of the raw sprintf() & co.  This patch replaces the open-code
with a new helper, sysfs_emit_at(), by passing the string offset.

Signed-off-by: zhaoxiao <zhaoxiao@...ontech.com>
---
 sound/soc/sof/intel/hda.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 6d4ecbe14adf..917d639671a7 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -574,7 +574,7 @@ static void hda_dsp_dump_ext_rom_status(struct snd_sof_dev *sdev, const char *le
 	chip = get_chip_info(sdev->pdata);
 	for (i = 0; i < HDA_EXT_ROM_STATUS_SIZE; i++) {
 		value = snd_sof_dsp_read(sdev, HDA_DSP_BAR, chip->rom_status_reg + i * 0x4);
-		len += scnprintf(msg + len, sizeof(msg) - len, " 0x%x", value);
+		len += sysfs_emit_at(msg, len, " 0x%x", value);
 	}
 
 	dev_printk(level, sdev->dev, "extended rom status: %s", msg);
-- 
2.20.1

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