[media] em28xx: improve extension information messages

Add a message with consistent prints before and after each
extension initialization, and provide a better text for module
load.

While here, add a missing sanity check for extension finish
code at em28xx-v4l extension.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c
index 2fdb66ee44ab..263886adcf26 100644
--- a/drivers/media/usb/em28xx/em28xx-audio.c
+++ b/drivers/media/usb/em28xx/em28xx-audio.c
@@ -649,7 +649,8 @@ static int em28xx_audio_init(struct em28xx *dev)
                 return 0;
         }
 
-        printk(KERN_INFO "em28xx-audio.c: probing for em28xx Audio Vendor Class\n");
+        em28xx_info("Binding audio extension\n");
+
         printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
                          "Rechberger\n");
         printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab\n");
@@ -702,6 +703,7 @@ static int em28xx_audio_init(struct em28xx *dev)
         adev->sndcard = card;
         adev->udev = dev->udev;
 
+        em28xx_info("Audio extension successfully initialized\n");
         return 0;
 }