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ALSA: pcm - fix mmap capability check for the snd-dummy driver

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commit 852a8a97776a153be2e6c803218eced45f37a19c upstream.

The snd-dummy driver (fake_buffer configuration) uses the ops->page
callback for the mmap operations. Allow mmap for this case, too.

Cc: <stable@vger.kernel.org>
Fixes: c4824ae7db41 ("ALSA: pcm: Fix mmap capability check")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20210730090254.612478-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jaroslav Kysela 2021-07-30 11:02:54 +02:00 committed by AuxXxilium
parent da448f9d17
commit 6de8bf4d7e
1 changed files with 1 additions and 1 deletions
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2
sound/core/pcm_native.c
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@ -246,7 +246,7 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream)
if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
return false;
if (substream->ops->mmap)
if (substream->ops->mmap || substream->ops->page)
return true;
switch (substream->dma_buffer.dev.type) {