Crash on recording from HDMI-IN

[prl]

When a recording is started on HDMI-IN, the UI crashes (T4, U4).

The cause is that the RecordTimer code that logs the recording tuner assumes that feinfo.getFrontendData() returns None on failure, but it actually returns an empty dict on failure.

Replication steps

On a T4 or U4, select HDMI IN as the live TV channel (no video input is required on the HDMI IN connector).

From live TV while viewing HDMI IN, REC>Create instant recording, crash.

[Peter Urbanec]

Fix bug #688: Crash on recording from HDMI-IN

Test fedata for general equivalence to True, instead of testing tn for not None.

Only log HDMI IN as the recording source on devices that have HDMI IN.

→ <<cset 587c2e62765c>>

[Peter Urbanec]

Merged in prl/easy-ui-4/Fix-bug-688 (pull request #501)

Fix bug #688: Crash on recording from HDMI-IN

→ <<cset aa4fbd73dab9>>