IS_ERR_OR_NULL(9)

🌸 NAME 🌸

okay so bestie, this is IS_ERR_OR_NULL from the Kernel API Manual, and its whole job is to detect an error pointer or a null pointer. that's the assignment, and it ate 💅

✨ SYNOPSIS ✨

the signature is literally:

bool IS_ERR_OR_NULL (__force const void *ptr );

🎀 ARGUMENTS 🎀

• ptr — the pointer to check. yes queen, that's the one 🫶

💖 DESCRIPTION 💖

It's giving IS_ERR, but it also returns true for a null pointer. so it's the "error pointer or null pointer" vibe check, periodt ✨

🦋 SEE ALSO 🦋

Kernel file ./include/linux/err.h — and the whole linked-up squad:

• IS_ERR_VALUE(9)
• ERR_PTR(9)
• INIT_ERR_PTR(9)
• PTR_ERR(9)
• IS_ERR(9)
• ERR_CAST(9)
• PTR_ERR_OR_ZERO(9)

okay bye bestie 🫶 this page is from ./include/linux, dated October 2026, and it's IS_ERR_OR_NULL(9) 💖💅