PTR_ERR(9)

💅 PTR_ERR(9) — Kernel API Manual, bestie! 💅

okay so this page is PTR_ERR from the Kernel API Manual, and it's literally about extracting the error code from an error pointer. no cap. 🫶

✨ NAME ✨

PTR_ERR — extract the error code from an error pointer. that's the whole vibe. 🎀

🌸 SYNOPSIS 🌸

long PTR_ERR (__force const void *ptr );

💖 ARGUMENTS 💖

• ptr — an error pointer. that's it. that's the argument. 💅

🔥 RETURN 🔥

the error code within ptr. yep, it's giving “inspect the pointer, hand back the code.” ✨

🦋 SEE ALSO 🦋

• Kernel file ./include/linux/err.h: IS_ERR_VALUE(9), ERR_PTR(9), INIT_ERR_PTR(9), IS_ERR(9), IS_ERR_OR_NULL(9), ERR_CAST(9), PTR_ERR_OR_ZERO(9) — the whole error-pointer friend group. iykyk 💜

cute sign-off: source/version is ./include/linux, date is October 2026, and the page is PTR_ERR(9). mwah 💋✨