v4l2_fh_release(9)

💅 v4l2_fh_release — a Kernel API Manual moment

Okay so bestie, welcome to the v4l2_fh_release page from the Kernel API Manual ✨ — it's giving "small function, big cleanup energy" and honestly? iconic.

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🌸 NAME 🌸

v4l2_fh_release — the ancillary routine you can totally use as the release op of v4l2_file_operations. 🎀

Like, it's a little helper that's literally built to slot right in there. No cap.

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✨ SYNOPSIS ✨

int v4l2_fh_release (struct file *filp );

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🦋 ARGUMENTS 🦋

• filp — a pointer to struct file. Just a lil pointer, she's doing her best 🫶

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💖 DESCRIPTION 💖

So here's the vibe: it deletes and exits the v4l2_fh associated with the file pointer, and then frees it. Cleanup queen behaviour 👑 — she comes in, she tidies up, she frees the thing.

And the best part? It will do nothing if filp->private_data (which is the pointer to the v4l2_fh struct) is NULL. Like, no drama, no crash, she just minds her business 🙈.

Also super important: this function always returns 0. Always. Every time. Zero. 0. That's the whole return value situation, fr fr.

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🔥 SEE ALSO 🔥

Go check out the Kernel file ./include/media/v4l2-fh.h and these besties 👯‍♀️:

• struct v4l2_fh(9)
• file_to_v4l2_fh(9)
• v4l2_fh_init(9)
• v4l2_fh_add(9)
• v4l2_fh_open(9)
• v4l2_fh_del(9)
• v4l2_fh_exit(9)
• v4l2_fh_is_singular(9)
• v4l2_fh_is_singular_file(9)

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Okay that's the whole page, mwah 💋 — this little gem lives in ./include/media, dated October 2026, and it's v4l2_fh_release(9) all the way down. Go free that v4l2_fh, bestie, you got this 🌈⭐