Re: [PATCH 0/3] fix error when writing negative value to simple attribute files

From: Greg Kroah-Hartman
Date: Tue Sep 20 2022 - 03:48:11 EST


On Tue, Sep 20, 2022 at 02:24:15AM +0900, Akinobu Mita wrote:
> The simple attribute files do not accept a negative value since the
> commit 488dac0c9237 ("libfs: fix error cast of negative value in
> simple_attr_write()"), but some attribute files want to accept
> a negative value.
>
> Akinobu Mita (3):
> libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
> lib/notifier-error-inject: fix error when writing -errno to debugfs
> file
> debugfs: fix error when writing negative value to atomic_t debugfs
> file
>
> .../fault-injection/fault-injection.rst | 10 +++----
> fs/debugfs/file.c | 28 +++++++++++++++----
> fs/libfs.c | 22 +++++++++++++--
> include/linux/debugfs.h | 19 +++++++++++--
> include/linux/fs.h | 12 ++++++--
> lib/notifier-error-inject.c | 2 +-
> 6 files changed, 73 insertions(+), 20 deletions(-)

Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>