Driver Core: sound: add nodename for sound drivers

This adds support to the sound core to report the proper device name to
userspace for their devices.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/sound/sound_core.c b/sound/sound_core.c
index 2b302bbffe73..12522e6913d9 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -27,6 +27,11 @@ MODULE_DESCRIPTION("Core sound module");
 MODULE_AUTHOR("Alan Cox");
 MODULE_LICENSE("GPL");
 
+static char *sound_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "snd/%s", dev_name(dev));
+}
+
 static int __init init_soundcore(void)
 {
         int rc;
@@ -41,6 +46,8 @@ static int __init init_soundcore(void)
                 return PTR_ERR(sound_class);
         }
 
+        sound_class->nodename = sound_nodename;
+
         return 0;
 }