ACPICA: utilities: fix sprintf()
authorJohn Levon <john.levon@joyent.com>
Fri, 27 Mar 2020 22:21:06 +0000 (15:21 -0700)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 30 Mar 2020 12:52:32 +0000 (14:52 +0200)
commitbb89a79ac6a605c5f02eced174e986e1d8b4cd45
tree30092c8c4437fae2b154836b7b5bd3c714e4947d
parentf2173c3e7df2cc33d15a6cfd2fbf78a4bca63a4e
ACPICA: utilities: fix sprintf()

This contains changes for the following ACPICA commit ID's:
8f99a6ccd3b8e5c3d3d68c53fdbb054c2477eeb4
d30647af53abd334cbcf6362387464ea647bac9e
d3c5fb4cf5b2880d789c987eb847fc3de3774abc

On 32-bit, the provided sprintf() is non-functional: with a size of
ACPI_UINT32_MAX, String + Size will wrap, meaning End < Start, and
acpi_ut_bound_string_output() will never output anything as a result.

The symptom we saw of this was acpixtract failing to output anything.

Link: https://github.com/acpica/acpica/commit/8f99a6cc
Link: https://github.com/acpica/acpica/commit/d30647af
Link: https://github.com/acpica/acpica/commit/d3c5fb4c
Signed-off-by: MSathieu <18145111+MSathieu@users.noreply.github.com>
Signed-off-by: John Levon <john.levon@joyent.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/acpica/utprint.c