em28xx: don't load audio modules when AC97 is mis-detected
With em2800 hardware, AC97 hardware can be detected even when it doesn't exist. If, after probing for AC97, the driver won't find a companion chip, simply prevents the load of the audio modules. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
1ca31892e3
commit
0731160aca
|
@ -533,8 +533,15 @@ int em28xx_audio_setup(struct em28xx *dev)
|
|||
|
||||
vid1 = em28xx_read_ac97(dev, AC97_VENDOR_ID1);
|
||||
if (vid1 < 0) {
|
||||
/* Device likely doesn't support AC97 */
|
||||
/*
|
||||
* Device likely doesn't support AC97
|
||||
* Note: (some) em2800 devices without eeprom reports 0x91 on
|
||||
* CHIPCFG register, even not having an AC97 chip
|
||||
*/
|
||||
em28xx_warn("AC97 chip type couldn't be determined\n");
|
||||
dev->audio_mode.ac97 = EM28XX_NO_AC97;
|
||||
dev->has_alsa_audio = 0;
|
||||
dev->audio_mode.has_audio = 0;
|
||||
goto init_audio;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue