drmm_kfree(9)

💖 drmm_kfree(9) — like, the whole page, bestie 💖

okay so real talk: this is a page out of the Kernel API Manual (yes, the actual kernel, we're being fancy today 👑) and it's about drmm_kfree, which is genuinely one of the most useful little gremlins in the DRM toolbox. It's giving "cleanup crew but make it managed." Let's get into it ✨

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🌸 NAME 🌸

drmm_kfree — the &drm_device managed version of kfree(). that's it. that's the whole vibe. 💅

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🦋 SYNOPSIS 🦋

void drmm_kfree (struct drm_device *dev , void *data );

look at her. short, sweet, does exactly one thing. main character energy fr fr 🎀

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✨ ARGUMENTS ✨

• dev — the DRM device. your little guy. the struct drm_device * that's holding the managed party together 🫶
• data — the memory allocation that's getting freed. the thing you're sending off into the void 😭

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💜 DESCRIPTION 💜

okay so here's the tea: this is a drm_device managed version of kfree, and it's the one you reach for when you want to release memory that was allocated through drmm_kmalloc — or any of its related functions — before the final drm_dev_put of dev happens. 🧚

like, that's the whole point. the memory is already tracked by the device, and this is your "actually, I'd like this gone now please" button. no cap, it's that simple. 🔥

bestie pls note: the timing detail is doing a lot of heavy lifting here — this one frees before that final drm_dev_put of dev. read that twice, it matters 💀

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⭐ SEE ALSO ⭐

• the kernel file ./drivers/gpu/drm/drm_managed.c — the source of truth, go read it, I'm obsessed 🌈
• managed resources(9)
• drmm_release_action(9)
• drmm_kmalloc(9)
• drmm_kstrdup(9)

iykyk — these are the whole family, they all hang out together 🍓

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💖 and that's the page!! shoutout to ./drivers/gpu/drm for being the home of all this, and to October 2026 for the timestamp — mwah, periodt 💅✨🌸