fix the misra check issues

[extinguish]

Summary

1. fix the moblib_bind variable uninit misra issue
2. remove the unreached dead code in pthread_mutexattr_setprotocol
3. fix using the uninit value misra issue in hcreate
4. fix the ret value not check erro on fs_fcntl

Impact

Testing

1. has pass the ostest
2. has checked on ghs and gcc compiler

[nuttxpr]

[Experimental Bot, please feedback here]

This PR summary is insufficient and it does not meet the NuttX Requirements. Here's why and how to fix it:

What's Missing & How to Fix It:

• Summary:

  • Be Specific: Instead of just stating "fix the moblib_bind variable uninit misra issue," explain what moblib_bind is, where it's used, and why initializing it is important. For example: "Fixes an uninitialized variable issue in the moblib_bind function used by [explain functionality]. This uninitialized variable could lead to unpredictable behavior during [explain scenario]."
  • Provide Context for Each Change: Do this for ALL listed changes (dead code removal, hcreate issue, fs_fcntl issue, etc.). Explain the potential consequences of the original bugs.
  • Issue References: If these fixes address specific issues, include the issue numbers (e.g., "Fixes arch/stackframe: fix heap buffer overflow #1234").

• Impact:

  • You must address each impact category: Even if the answer is "NO", state it explicitly (e.g., "Impact on build: NO").
  • Provide Details When Applicable: For example, if a change impacts a specific architecture (like ARM), mention it.
  • User Impact is Crucial: If any change affects how users interact with NuttX, this section needs a detailed explanation.

• Testing:

  • Insufficient Information:
    • Build Hosts: Specify the exact operating systems and versions used for testing (e.g., "Ubuntu 20.04," "macOS 12.4").
    • Target(s): Provide the full architecture and board configurations. For example, "sim:qemu-arm" or "ARM:STM32F4 Discovery board".
    • Testing Logs: The logs you've provided are placeholders. Include the actual relevant log output from your tests, both before and after the changes.
    • Test Cases: Briefly describe the specific tests you ran to verify the changes (e.g., "Ran network tests to confirm moblib_bind fix," "Performed file system stress tests").

Example of an Improved Summary Point:

Instead of:

1. fix the moblib_bind variable uninit misra issue

Write something like:

1. Fixes an uninitialized variable issue in the moblib_bind function, which is responsible for [explain function's purpose, e.g., binding network sockets to specific interfaces]. Leaving this variable uninitialized could lead to non-deterministic behavior, potentially causing network connectivity failures in certain scenarios. This addresses issue #[issue number, if applicable].

Remember: A good PR description is crucial for reviewers to understand your changes, assess their impact, and confidently merge them.