scripts/coccinelle/tests/odd_ptr_err.cocci

File Facts

System

Linux kernel

Corpus path

scripts/coccinelle/tests/odd_ptr_err.cocci

Extension

.cocci

Size

2164 bytes

Lines

119

Domain

Support Tooling And Documentation

Bucket

scripts

Inferred role

Support Tooling And Documentation: scripts

Status

atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

* if (IS_ERR@j0(x) || ...) {
  ... when any
      when != IS_ERR(...)
*   PTR_ERR@j1@p(
     y
  )
  ... when any
}

// ----------------------------------------------------------------------------

@script:python r1_org depends on org@
j0 << r1_context.j0;
j1 << r1_context.j1;
@@

msg = "inconsistent IS_ERR and PTR_ERR"
coccilib.org.print_todo(j0[0], msg)
coccilib.org.print_link(j1[0], "")

// ----------------------------------------------------------------------------

@script:python r1_report depends on report@
j0 << r1_context.j0;
j1 << r1_context.j1;
@@

msg = "inconsistent IS_ERR and PTR_ERR on line %s." % (j1[0].line)
coccilib.report.print_report(j0[0], msg)

Annotation

• Atlas domain: Support Tooling And Documentation / scripts.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.