tree c34cfddeef6955cfa9f2d567f931c3601c2325bc
parent d4d4da8d399c010ab5f001365e6ec8b0d3064ddc
author Chris Fries <cfries@motorola.com> 1412612694 -0500
committer Elliott Hughes <enh@google.com> 1427928380 -0700

toolbox: ioctl: fix signedness on ioctl_nr

ioctl_nr is passed signed to the kernel, but many users refer
to ioctl's in unsigned 32 bit notation.

Let's use stroll to set it, to let people specify either
negative numbers or large positive numbers.

Also improve error reporting.

Reported-By: Alex Piliev <ktnr74@motorola.com>
Change-Id: I789434895b70b051d4d5c1a5db566a1925478ef0