[Deepak-Rathn]

… component

Reason for change: Fixing Coverity issue linked in Jira
Test Procedure: Should meet Acceptance Criteria:
Risks: Medium
Priority: P1

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[Copilot]

🔵 Needs a closer look

The tunnel-signaling synchronization changes need concurrency and failover validation before approval.

No open issues 🎉

What changed in this PR

This PR addresses Coverity findings in the hotspot component, focusing on tunnel-signal synchronization, sysevent error handling, and resource cleanup.

Changes:

• Protect primary and secondary tunnel-signal consumption with a mutex and explicitly mask the checksum result.
• Check sysevent return values in hotspot disable and MAP-T address lookup paths.
• Reset the ARP daemon’s sysevent descriptor and token after closing the connection.

File	Description
source/​hotspotfd/​hotspotfd.c	Synchronizes tunnel-signal handling and makes checksum conversion explicit.
source/​HotspotApi/​HotspotApi.c	Reports sysevent lookup failures during hotspot disable.
source/​arp_solicitation/​hotspot_arpd.c	Checks MAP-T lookups and clears closed sysevent connection state.

_{Review effort: Balanced}