[clang-tidy][NFC] Fix linuxkernel-must-check-errs documentation file name (llvm#88655)

The check was originally introduced in commit
fc8c65b with conflicting names, likely as a
result of a partial rename, with the name in the documentation
(`linuxkernel-must-use-errs`) not matching the name of the check as configured
by users.

Author: whisperity

clang-tools-extra/clang-tidy/linuxkernel/MustCheckErrsCheck.h

@@ -17,15 +17,8 @@ namespace clang::tidy::linuxkernel {
 /// linux/err.h. Also checks to see if code uses the results from functions that
 /// directly return a value from one of these error functions.
 ///
-/// This is important in the Linux kernel because ERR_PTR, PTR_ERR, IS_ERR,
-/// IS_ERR_OR_NULL, ERR_CAST, and PTR_ERR_OR_ZERO return values must be checked,
-/// since positive pointers and negative error codes are being used in the same
-/// context. These functions are marked with
-/// __attribute__((warn_unused_result)), but some kernel versions do not have
-/// this warning enabled for clang.
-///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/linuxkernel/must-use-errs.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/linuxkernel/must-check-errs.html
 class MustCheckErrsCheck : public ClangTidyCheck {
 public:
   MustCheckErrsCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/docs/ReleaseNotes.rst

@@ -303,6 +303,10 @@ Miscellaneous
   ``--format`` option is specified. Now :program:`clang-apply-replacements`
   applies formatting only with the option.
 
+- Fixed the :doc:`linuxkernel-must-check-errs
+  <clang-tidy/checks/linuxkernel/must-check-errs>` documentation to consistently
+  use the check's proper name.
+
 Improvements to include-fixer
 -----------------------------
 

clang-tools-extra/docs/clang-tidy/checks/linuxkernel/must-use-errs.rst renamed to clang-tools-extra/docs/clang-tidy/checks/linuxkernel/must-check-errs.rst

@@ -1,7 +1,7 @@
-.. title:: clang-tidy - linuxkernel-must-use-errs
+.. title:: clang-tidy - linuxkernel-must-check-errs
 
-linuxkernel-must-use-errs
-=========================
+linuxkernel-must-check-errs
+===========================
 
 Checks Linux kernel code to see if it uses the results from the functions in
 ``linux/err.h``. Also checks to see if code uses the results from functions that

clang-tools-extra/docs/clang-tidy/checks/list.rst

@@ -233,7 +233,7 @@ Clang-Tidy Checks
    :doc:`hicpp-multiway-paths-covered <hicpp/multiway-paths-covered>`,
    :doc:`hicpp-no-assembler <hicpp/no-assembler>`,
    :doc:`hicpp-signed-bitwise <hicpp/signed-bitwise>`,
-   :doc:`linuxkernel-must-use-errs <linuxkernel/must-use-errs>`,
+   :doc:`linuxkernel-must-check-errs <linuxkernel/must-check-errs>`,
    :doc:`llvm-header-guard <llvm/header-guard>`,
    :doc:`llvm-include-order <llvm/include-order>`, "Yes"
    :doc:`llvm-namespace-comment <llvm/namespace-comment>`,