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ALSA: hda - Create AFG sysfs node at last 

... so that user-space can know that the whole nodes have been
created.  Unfortunately, this can't be implemented easily in race-free
way, so it's a kind of compromise.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
wifi-calibration
Takashi Iwai 2015-04-08 11:41:59 +02:00
parent e1e62b98eb
commit 142267c9e0
1 changed files with 8 additions and 8 deletions
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16
sound/hda/hdac_sysfs.c
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@ -313,12 +313,12 @@ static void widget_tree_free(struct hdac_device *codec)
if (!tree)
return;
free_widget_node(tree->afg, &widget_afg_group);
if (tree->nodes) {
for (p = tree->nodes; *p; p++)
free_widget_node(*p, &widget_node_group);
kfree(tree->nodes);
}
free_widget_node(tree->afg, &widget_afg_group);
if (tree->root)
kobject_put(tree->root);
kfree(tree);
@ -362,13 +362,6 @@ static int widget_tree_create(struct hdac_device *codec)
if (!tree->root)
return -ENOMEM;
if (codec->afg) {
err = add_widget_node(tree->root, codec->afg,
&widget_afg_group, &tree->afg);
if (err < 0)
return err;
}
tree->nodes = kcalloc(codec->num_nodes + 1, sizeof(*tree->nodes),
GFP_KERNEL);
if (!tree->nodes)
@ -381,6 +374,13 @@ static int widget_tree_create(struct hdac_device *codec)
return err;
}
if (codec->afg) {
err = add_widget_node(tree->root, codec->afg,
&widget_afg_group, &tree->afg);
if (err < 0)
return err;
}
kobject_uevent(tree->root, KOBJ_CHANGE);
return 0;
}