dma_fence_chain_free(9)

💅 dma_fence_chain_free(9) 💅

okay bestie, this page comes straight from the Kernel API Manual and it's lowkey a cleanup function for a dma_fence_chain that was allocated but never used. no cap 💖.

✨ NAME ✨

dma_fence_chain_free — frees an allocated but not used &struct dma_fence_chain object.

🎀 SYNOPSIS 🎀

void dma_fence_chain_free (struct dma_fence_chain *chain );

🫶 ARGUMENTS 🫶

• chain — the chain node to free. that's the whole vibe, fr fr.

💅 DESCRIPTION 💅

Frees up an allocated but not used struct dma_fence_chain object. It's giving "cleanup only, no live fence energy" ✨.

This one does not need an RCU grace period, because the fence was never initialized and never published. so no waiting around for RCU, bestie — it was never out there in the world 🌈.

⚠️ once dma_fence_chain_init has been called, that fence must be released by calling dma_fence_put, and not through this function. like, do not use dma_fence_chain_free for a fence that's been initialized. periodt 💅.

🔥 SEE ALSO 🔥

• Kernel file ./include/linux/dma-fence-chain.h
• struct dma_fence_chain(9)
• to_dma_fence_chain(9)
• dma_fence_chain_contained(9)
• dma_fence_chain_alloc(9)
• dma_fence_chain_for_each(9)

xoxo bestie — source/version ./include/linux, date October 2026 🎀