fsldma_free_desc_list(9)

💅 NAME 💅

fsldma_free_desc_list — frees, like, every single descriptor in a queue ✨ (yes all of them, no crumbs left behind 🍓)

this little cutie lives in the Kernel API Manual (section 9, kernel API things, iykyk) 🎀

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✨ SYNOPSIS ✨

void fsldma_free_desc_list (struct fsldma_chan *chan , struct list_head
*list );

okay so it returns void, bestie — nothing comes back, it's giving "I did the thing, I don't need applause" 💅

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🌸 ARGUMENTS 🌸

• chan — the Freescale DMA channel 🦋 your fave, the one holding the lock
• list — the list to free 🎀 like, the actual list, the whole entire list

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🔥 DESCRIPTION 🔥

LOCKING: you must hold chan->desc_lock before you call this 💀 not optional, not a suggestion, not a vibe check you can skip — hold the lock, periodt.

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👑 SEE ALSO 👑

it's giving friend group, honestly 🌈 — the whole ./drivers/dma/fsldma.c kernel file is in on this:

• fsl_chan_set_src_loop_size(9)
• fsl_chan_set_dst_loop_size(9)
• fsl_chan_set_request_count(9)
• fsl_chan_toggle_ext_pause(9)
• fsl_chan_toggle_ext_start(9)
• fsl_dma_free_descriptor(9)
• fsl_dma_alloc_descriptor(9)
• fsldma_clean_completed_descriptor(9)
• fsldma_run_tx_complete_actions(9)
• fsldma_clean_running_descriptor(9)
• fsl_chan_xfer_ld_queue(9)
• fsldma_cleanup_descriptors(9)
• fsl_dma_alloc_chan_resources(9)
• fsl_dma_free_chan_resources(9)
• fsl_dma_memcpy_issue_pending(9)
• fsl_tx_status(9)

bestie pls — if you're touching descriptors without the lock you're not in your main character era, you're in your segfault era 😭🙈

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that's the whole page, bestie — shoutout to the source under ./drivers/dma, October 2026 edition, and this was fsldma_free_desc_list(9) 💖 mwah, go hold that lock 🫶⭐