Device reboot while adding second fingerprint

[rinigus]

This happens only with Sailfish Settings. To reproduce:

• add the first fingerprint
• start adding the second fingerprint. If you authenticate with the first fingerprint, all will work nicely. If you authenticate with the pin code, device will reboot after a bit of time.

Looks like it never goes in to the enrolling mode in the failing case. Logs:

May 31 11:25:44 Sailfish sailfish-fpd-community[5532]: int FPDCommunity::Identify()
May 31 11:25:44 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::setState(FPDCommunity::State) FPDCommunity::State(FPSTATE_IDENTIFYING)
May 31 11:25:44 Sailfish sailfish-fpd-community[5532]: void AndroidFP::authenticate()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: int FPDCommunity::Abort()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void AndroidFP::cancel()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::setState(FPDCommunity::State) FPDCommunity::State(FPSTATE_IDLE)
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: static void AndroidFP::error_cb(uint64_t, UHardwareBiometryFingerprintError, int32_t, void*) 5 0
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::slot_failed(const QString&) "ERROR_CANCELED"
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::setState(FPDCommunity::State) FPDCommunity::State(FPSTATE_IDLE)
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::enumerate()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::setState(FPDCommunity::State) FPDCommunity::State(FPSTATE_ENUMERATING)
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void AndroidFP::enumerate()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: static void AndroidFP::enumerate_cb(uint64_t, uint32_t, uint32_t, uint32_t, void*) 3582113760 2
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void AndroidFP::enumerateCallback(uint32_t, uint32_t) 3582113760 2
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: static void AndroidFP::enumerate_cb(uint64_t, uint32_t, uint32_t, uint32_t, void*) 1589213842 1
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void AndroidFP::enumerateCallback(uint32_t, uint32_t) 1589213842 1
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: static void AndroidFP::enumerate_cb(uint64_t, uint32_t, uint32_t, uint32_t, void*) 1420685076 0
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void AndroidFP::enumerateCallback(uint32_t, uint32_t) 1420685076 0
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::slot_enumerated()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::setState(FPDCommunity::State) FPDCommunity::State(FPSTATE_IDLE)
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::loadFingers()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: QList<unsigned int> AndroidFP::fingerprints() const
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: void FPDCommunity::saveFingers()
May 31 11:25:58 Sailfish sailfish-fpd-community[5532]: Loaded finger map: QMap((1420685076, "finger2")(1589213842, "finger")(3582113760, "finger1"))

[rinigus]

There are still some cases when it doesn't work as it should. When adding, removing, cancelling some enroll actions I can get device to freeze and reboot.