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Revert "ALSA: sb: fix a missing check of snd_ctl_add" 

This reverts commit beae77170c.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It is safe to ignore this error as the
mixer element is optional, and the driver is very legacy.

Cc: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210503115736.2104747-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2021-05-03 13:56:34 +02:00
parent fd013265e5
commit 4b059ce1f4
1 changed files with 3 additions and 7 deletions
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10
sound/isa/sb/sb16_main.c
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@ -846,14 +846,10 @@ int snd_sb16dsp_pcm(struct snd_sb *chip, int device)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sb16_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sb16_capture_ops);
if (chip->dma16 >= 0 && chip->dma8 != chip->dma16) {
err = snd_ctl_add(card, snd_ctl_new1(
&snd_sb16_dma_control, chip));
if (err)
return err;
} else {
if (chip->dma16 >= 0 && chip->dma8 != chip->dma16)
snd_ctl_add(card, snd_ctl_new1(&snd_sb16_dma_control, chip));
else
pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
}
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
card->dev, 64*1024, 128*1024);