drm_panic_unlock(9)

💅 drm_panic_unlock(9) — like, the official kernel API manual, section 9 bestie ✨

okay so real talk: this one lives in the Kernel API Manual (that's the manual name, section 9, mwah) and she's a tiny little function with one job, but it's kind of a big-deal job, so let's get into it 🫶

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🌸 NAME 🌸

drm_panic_unlock — she's the end of the panic printing critical section. that's it. that's the whole vibe. closing time, lights off, everybody out 💅

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✨ SYNOPSIS ✨

drm_panic_unlock (dev , flags );

yes the spacing is exactly like that, don't @ me, that's how it's written, copy it character for character bestie 💖

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🎀 ARGUMENTS 🎀

• dev — a struct drm_device. your whole graphics device situation, the main character of the operation 🖥️
• flags — the irq flags that were returned when acquiring the lock. like, the receipt you got when you locked it. keep it safe, hand it back here, don't lose it 🙈

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🦋 DESCRIPTION 🦋

okay so picture this: somebody locked a raw spinlock, right? either via drm_panic_lock or via drm_panic_trylock. and now the section is over and it needs to be unlocked.

that's her. that's the whole function. drm_panic_unlock unlocks the raw spinlock acquired by either drm_panic_lock or drm_panic_trylock. no cap 🔥

literally the "you may now exit the critical section" moment, and honestly she ate 👑

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💜 SEE ALSO 💜

• Kernel file ./include/drm/drm_panic.h
• struct drm_scanout_buffer(9)
• drm_panic_trylock(9)
• drm_panic_lock(9)

go read the friends, they're iconic too, iykyk 🌈

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ngl the panic printing critical section is not the place to be doing silly things — that's literally what "panic" in the name is telling you 💀 keep it tight, then unlock and get out 🧚

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and that's the page!! 🍓 brought to you by ./include/drm, dated October 2026, and she's drm_panic_unlock(9) all day every day — mwah, bye bestie 💖✨🎀