modpost: simplify mod->name allocation

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mod->name is set to the ELF filename with the suffix ".o" stripped.

The current code calls strdup() and free() to manipulate the string,
but a simpler approach is to pass new_module() with the name length
subtracted by 2.

Also, check if the passed filename ends with ".o" before stripping it.

The current code blindly chops the suffix:

    tmp[strlen(tmp) - 2] = '\0'

It will cause buffer under-run if strlen(tmp) < 2;

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

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This commit is contained in:

Masahiro Yamada 2022-05-30 18:01:38 +09:00

parent b42d230650

commit 8c9ce89c5b

1 changed files with 12 additions and 13 deletions

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scripts/mod/modpost.c

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