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| author | Akira Yokosawa <akiyks@gmail.com> | 2022-02-24 22:02:46 +0900 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2022-02-24 12:13:19 -0700 |
| commit | e334f873eb4e1638dd0b45200d2d8838a13b0cac (patch) | |
| tree | 1aaf4c2882e972a6a9a9fd5b6f128ad985322f4c /Documentation/vm | |
| parent | 2b306ecaf57b2b5004dcb671a46ef24a1c369db2 (diff) | |
| download | lwn-e334f873eb4e1638dd0b45200d2d8838a13b0cac.tar.gz lwn-e334f873eb4e1638dd0b45200d2d8838a13b0cac.zip | |
docs: scripts/kernel-doc: Detect absence of FILE arg
Currently, when there is no FILE argument following a switch such
as -man, -rst, or -none, kernel-doc exits with a warning from perl
(long msg folded):
Use of uninitialized value $ARGV[0] in pattern match (m//)
at ./scripts/kernel-doc line 438.
, which is unhelpful.
Improve the behavior by adding a check at the bottom of parsing
loop.
If the argument is absent, display help text and exit with
the code of 1 (via usage()).
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/7b136049-a3ba-0eb5-8717-364d773ff914@gmail.com
[jc: reworked to fix conflict with pod patches]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/vm')
0 files changed, 0 insertions, 0 deletions