diff options
| author | Takashi Iwai <tiwai@suse.de> | 2019-07-03 15:35:12 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-07-05 13:01:06 +0300 |
| commit | 774a075ab5140bb4504e6026bf327021926c3e65 (patch) | |
| tree | f1d8252e2adc8f0f6ca3bb142f5b612699f8cc7e /sound | |
| parent | 3450121997ce872eb7f1248417225827ea249710 (diff) | |
| download | linux-774a075ab5140bb4504e6026bf327021926c3e65.tar.xz | |
ALSA: hda: Simplify snd_hdac_refresh_widgets()
Along with the recent fix for the races of snd_hdac_refresh_widgets()
it turned out that the instantiation of widgets sysfs at
snd_hdac_sysfs_reinit() could cause a race. The race itself was
already covered later by extending the mutex protection range, the
commit 98482377dc72 ("ALSA: hda: Fix widget_mutex incomplete
protection"), but this also indicated that the call of *_reinit() is
basically superfluous, as the widgets shall be created sooner or later
from snd_hdac_device_register().
This patch removes the redundant call of snd_hdac_sysfs_reinit() at
first. By this removal, the sysfs argument itself in
snd_hdac_refresh_widgets() becomes superfluous, too, because the only
case sysfs=false is always with codec->widgets=NULL. So, we drop this
redundant argument as well.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/hda/hdac_device.c | 13 | ||||
| -rw-r--r-- | sound/hda/hdac_sysfs.c | 2 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 2 | ||||
| -rw-r--r-- | sound/soc/codecs/hdac_hdmi.c | 2 |
4 files changed, 8 insertions, 11 deletions
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 11050bfd8068..a265c1d68876 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -89,7 +89,7 @@ int snd_hdac_device_init(struct hdac_device *codec, struct hdac_bus *bus, fg = codec->afg ? codec->afg : codec->mfg; - err = snd_hdac_refresh_widgets(codec, false); + err = snd_hdac_refresh_widgets(codec); if (err < 0) goto error; @@ -394,9 +394,8 @@ static void setup_fg_nodes(struct hdac_device *codec) /** * snd_hdac_refresh_widgets - Reset the widget start/end nodes * @codec: the codec object - * @sysfs: re-initialize sysfs tree, too */ -int snd_hdac_refresh_widgets(struct hdac_device *codec, bool sysfs) +int snd_hdac_refresh_widgets(struct hdac_device *codec) { hda_nid_t start_nid; int nums, err = 0; @@ -414,11 +413,9 @@ int snd_hdac_refresh_widgets(struct hdac_device *codec, bool sysfs) goto unlock; } - if (sysfs) { - err = hda_widget_sysfs_reinit(codec, start_nid, nums); - if (err < 0) - goto unlock; - } + err = hda_widget_sysfs_reinit(codec, start_nid, nums); + if (err < 0) + goto unlock; codec->num_nodes = nums; codec->start_nid = start_nid; diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c index 909d5ef1179c..e56e83325903 100644 --- a/sound/hda/hdac_sysfs.c +++ b/sound/hda/hdac_sysfs.c @@ -428,7 +428,7 @@ int hda_widget_sysfs_reinit(struct hdac_device *codec, int i; if (!codec->widgets) - return hda_widget_sysfs_init(codec); + return 0; tree = kmemdup(codec->widgets, sizeof(*tree), GFP_KERNEL); if (!tree) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index fcdf2cd3783b..d1a0e0de80ac 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1016,7 +1016,7 @@ int snd_hda_codec_update_widgets(struct hda_codec *codec) hda_nid_t fg; int err; - err = snd_hdac_refresh_widgets(&codec->core, true); + err = snd_hdac_refresh_widgets(&codec->core); if (err < 0) return err; diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 660e0587f399..6302ad5b7128 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -2043,7 +2043,7 @@ static int hdac_hdmi_dev_probe(struct hdac_device *hdev) "Failed in parse and map nid with err: %d\n", ret); return ret; } - snd_hdac_refresh_widgets(hdev, true); + snd_hdac_refresh_widgets(hdev); /* ASoC specific initialization */ ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec, |