V4L/DVB (10125): em28xx: Don't do AC97 vendor detection for i2s audio devices

The current code was trying to query the AC97 registers for the vendor
information even if it was clearly not a AC97 audio device (resulting in errors
in the dmesg output).  This was due to a bug in the way we did the check.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 5d1482280e45..f8504518586a 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -497,7 +497,8 @@ int em28xx_audio_setup(struct em28xx *dev)
                 dev->audio_mode.i2s_5rates = 1;
         }
 
-        if (!(cfg & EM28XX_CHIPCFG_AC97)) {
+        if ((cfg & EM28XX_CHIPCFG_AUDIOMASK) != EM28XX_CHIPCFG_AC97) {
+                /* Skip the code that does AC97 vendor detection */
                 dev->audio_mode.ac97 = EM28XX_NO_AC97;
                 goto init_audio;
         }