tree df17201276fe098c050392d500933656732a1e9c
parent 7494581689b0fc1d8addd016b1c92d74d01f5ad4
author JP Abgrall <jpa@google.com> 1340334132 -0700
committer JP Abgrall <jpa@google.com> 1340334132 -0700

libsensors_iio: Don't segfault when constructor fails when device absent

Currently too much work is been done in the constructor.
If a device is not there in the kernel, the constructor will fail
to correctly initialize, and will leave a bunch of uninitialized strings
that when used will cause segfaults.

So now the classes have an isValid() method to be used after construction.
If false, the object should be destroyed.

Added extra checks to locate failed initialization.

Change-Id: I3f767f9dc0b0f19b66d034a683444baed771a5db