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| author | Wang YanQing <udknight@gmail.com> | 2017-09-03 21:18:49 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-09-03 16:33:42 +0200 |
| commit | 1f7f51a63114bab3a05920f4b1343154e95e2cb6 (patch) | |
| tree | 3e045b0e9e0d5b28b2665d195a809bd9300e283b /sound/pci/hda/hda_codec.c | |
| parent | 83b033bd33a8b7b16f568e3432d3e27d03ef9c82 (diff) | |
| download | linux-1f7f51a63114bab3a05920f4b1343154e95e2cb6.tar.bz2 | |
ALSA: hda: Fix regression of hdmi eld control created based on invalid pcm
Commit fb087eaaef72 ("ALSA: hda - hdmi eld control created based on pcm")
forget to filter out invalid pcm numbers, if there is only one invalid pcm
number, then this issue causes we create eld control for invalid pcm silently,
but when there are more than one invalid pcm numbers, then this issue bring
probe error looks like below dmesg:
"
kernel: [ 1.647283] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops 0xc2967540)
kernel: [ 1.651192] snd_hda_intel 0000:00:03.0: Too many HDMI devices
kernel: [ 1.651195] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y
kernel: [ 1.651197] snd_hda_intel 0000:00:03.0: Too many HDMI devices
kernel: [ 1.651199] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y
kernel: [ 1.651201] snd_hda_intel 0000:00:03.0: Too many HDMI devices
kernel: [ 1.651203] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y
kernel: [ 1.651676] snd_hda_intel 0000:00:03.0: control 3:0:0:ELD:0 is already present
kernel: [ 1.651787] snd_hda_codec_hdmi: probe of hdaudioC0D0 failed with error -16
"
This patch add invalid pcm number filter before calling hdmi_create_eld_ctl.
Fixes: fb087eaaef72 ("ALSA: hda - hdmi eld control created based on pcm")
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 821aad374a06..3db26c451837 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -3213,8 +3213,10 @@ int snd_hda_codec_build_pcms(struct hda_codec *codec) continue; /* no substreams assigned */ dev = get_empty_pcm_device(bus, cpcm->pcm_type); - if (dev < 0) + if (dev < 0) { + cpcm->device = SNDRV_PCM_INVALID_DEVICE; continue; /* no fatal error */ + } cpcm->device = dev; err = snd_hda_attach_pcm_stream(bus, codec, cpcm); if (err < 0) { |