snd_dma_free_pages(9)

✨ snd_dma_free_pages ✨

ok so bestie, welcome to the snd_dma_free_pages(9) page — yes that's a kernel API manual, yes you're gonna understand it, and yes we're doing this together 💖

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🎀 NAME 🎀

snd_dma_free_pages — release the allocated buffer

like, it's the letting-go function. the "we're done here" function. the cleanup era 🌸

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🦋 SYNOPSIS 🦋

void snd_dma_free_pages (struct snd_dma_buffer *dmab );

not me literally copying the signature character for character because that is the whole point, no cap 💅

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🌈 ARGUMENTS 🌈

• dmab — the buffer allocation record to release. this is the little receipt you kept from when you allocated it, and now you're handing it back at the returns desk 🫶

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💜 DESCRIPTION 💜

it releases the allocated buffer via snd_dma_alloc_pages.

that's it. that's the whole vibe. you allocated it over there, and now you free it over here — the circle is complete, the arc is arcing, the cleanup is clean ✨

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🔥 SEE ALSO 🔥

the kernel file lives at ./sound/core/memalloc.c, and honestly the whole friend group is iconic:

• snd_dma_alloc_dir_pages(9)
• snd_dma_alloc_pages_fallback(9)
• snd_devm_alloc_dir_pages(9)
• snd_dma_buffer_mmap(9)
• snd_dma_buffer_sync(9)
• snd_sgbuf_get_addr(9)
• snd_sgbuf_get_page(9)
• snd_sgbuf_get_chunk_size(9)

go read them, they're all in their main character era 👑

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ok that's the page!! sourced straight from ./sound/core, dated October 2026 — mwah, love u, go free your buffers responsibly 💅🎀🦋