thinkpad-acpi: acpi_evalf fixes
thinkpad-acpi: acpi_evalf fixes

Use acpi_format_exception() in acpi_evalf() instead of logging numeric
errors.

Also, when ACPICA returns an error, we should not be touching the return
object, as it is invalid.  In debug mode, acpi_evalf() callers would
printk the returned crap (but fortunately, not use it).

Signed-off-by: Henrique de Moraes Holschuh <1416ae054606eb9be8fa0d7696a4ddff667a3601@hmh.eng.br>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs