diff options
author | Takashi Iwai <tiwai@suse.de> | 2022-08-01 19:56:38 +0300 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2022-08-02 17:03:47 +0300 |
commit | 17daae7ac47aa870e7042aa7eeaff987feab92c6 (patch) | |
tree | 324e6f6b1c3197014c3932936ade22fcc239af78 /sound/hda | |
parent | 01043e3e14d3e17acf563e0ce27abd73c6edde7f (diff) | |
download | linux-17daae7ac47aa870e7042aa7eeaff987feab92c6.tar.xz |
ALSA: hda: Replace sprintf() with sysfs_emit()
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 new helpers, sysfs_emit() and sysfs_emit_at().
Link: https://lore.kernel.org/r/20220801165639.26030-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
-rw-r--r-- | sound/hda/hdac_sysfs.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c index 0d7771fca9f0..e47de49a32e3 100644 --- a/sound/hda/hdac_sysfs.c +++ b/sound/hda/hdac_sysfs.c @@ -22,7 +22,7 @@ static ssize_t type##_show(struct device *dev, \ char *buf) \ { \ struct hdac_device *codec = dev_to_hdac_dev(dev); \ - return sprintf(buf, "0x%x\n", codec->type); \ + return sysfs_emit(buf, "0x%x\n", codec->type); \ } \ static DEVICE_ATTR_RO(type) @@ -32,8 +32,8 @@ static ssize_t type##_show(struct device *dev, \ char *buf) \ { \ struct hdac_device *codec = dev_to_hdac_dev(dev); \ - return sprintf(buf, "%s\n", \ - codec->type ? codec->type : ""); \ + return sysfs_emit(buf, "%s\n", \ + codec->type ? codec->type : ""); \ } \ static DEVICE_ATTR_RO(type) @@ -161,7 +161,7 @@ static struct kobj_type widget_ktype = { static ssize_t caps_show(struct hdac_device *codec, hda_nid_t nid, struct widget_attribute *attr, char *buf) { - return sprintf(buf, "0x%08x\n", get_wcaps(codec, nid)); + return sysfs_emit(buf, "0x%08x\n", get_wcaps(codec, nid)); } static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid, @@ -169,8 +169,8 @@ static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid, { if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP)); } static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid, @@ -182,7 +182,7 @@ static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid, return 0; if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val)) return 0; - return sprintf(buf, "0x%08x\n", val); + return sysfs_emit(buf, "0x%08x\n", val); } static bool has_pcm_cap(struct hdac_device *codec, hda_nid_t nid) @@ -203,8 +203,8 @@ static ssize_t pcm_caps_show(struct hdac_device *codec, hda_nid_t nid, { if (!has_pcm_cap(codec, nid)) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_PCM)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_PCM)); } static ssize_t pcm_formats_show(struct hdac_device *codec, hda_nid_t nid, @@ -212,8 +212,8 @@ static ssize_t pcm_formats_show(struct hdac_device *codec, hda_nid_t nid, { if (!has_pcm_cap(codec, nid)) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_STREAM)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_STREAM)); } static ssize_t amp_in_caps_show(struct hdac_device *codec, hda_nid_t nid, @@ -221,8 +221,8 @@ static ssize_t amp_in_caps_show(struct hdac_device *codec, hda_nid_t nid, { if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_IN_AMP)) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_AMP_IN_CAP)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_AMP_IN_CAP)); } static ssize_t amp_out_caps_show(struct hdac_device *codec, hda_nid_t nid, @@ -230,8 +230,8 @@ static ssize_t amp_out_caps_show(struct hdac_device *codec, hda_nid_t nid, { if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_OUT_AMP)) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_AMP_OUT_CAP)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_AMP_OUT_CAP)); } static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid, @@ -239,15 +239,15 @@ static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid, { if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_POWER)) return 0; - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE)); } static ssize_t gpio_caps_show(struct hdac_device *codec, hda_nid_t nid, struct widget_attribute *attr, char *buf) { - return sprintf(buf, "0x%08x\n", - snd_hdac_read_parm(codec, nid, AC_PAR_GPIO_CAP)); + return sysfs_emit(buf, "0x%08x\n", + snd_hdac_read_parm(codec, nid, AC_PAR_GPIO_CAP)); } static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid, @@ -261,8 +261,8 @@ static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid, if (nconns <= 0) return nconns; for (i = 0; i < nconns; i++) - ret += sprintf(buf + ret, "%s0x%02x", i ? " " : "", list[i]); - ret += sprintf(buf + ret, "\n"); + ret += sysfs_emit_at(buf, ret, "%s0x%02x", i ? " " : "", list[i]); + ret += sysfs_emit_at(buf, ret, "\n"); return ret; } |