Merge branch 'liblockdep-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / sound / core / sound.c

diff --git a/sound/core/sound.c b/sound/core/sound.c
index 60ab9b1f44b958098bcabceb2828c21dbc1f779a..38ad1a0dd3f70fc68435309dd75b1d4c45bf3c42 100644 (file)
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -355,22 +355,25 @@ int snd_unregister_device(int type, struct snd_card *card, int dev)
 
 EXPORT_SYMBOL(snd_unregister_device);
 
-int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
-                             struct device_attribute *attr)
+/* get the assigned device to the given type and device number;
+ * the caller needs to release it via put_device() after using it
+ */
+struct device *snd_get_device(int type, struct snd_card *card, int dev)
 {
-       int minor, ret = -EINVAL;
-       struct device *d;
+       int minor;
+       struct device *d = NULL;
 
        mutex_lock(&sound_mutex);
        minor = find_snd_minor(type, card, dev);
-       if (minor >= 0 && (d = snd_minors[minor]->dev) != NULL)
-               ret = device_create_file(d, attr);
+       if (minor >= 0) {
+               d = snd_minors[minor]->dev;
+               if (d)
+                       get_device(d);
+       }
        mutex_unlock(&sound_mutex);
-       return ret;
-
+       return d;
 }
-
-EXPORT_SYMBOL(snd_add_device_sysfs_file);
+EXPORT_SYMBOL(snd_get_device);
 
 #ifdef CONFIG_PROC_FS
 /*