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What will happen if you forget to check the result of pvPortMalloc() before using the pointer?

medium📝 Predict Output Q13 of 15
FreeRTOS - Memory Management
What will happen if you forget to check the result of pvPortMalloc() before using the pointer?
AIt may cause a runtime crash due to null pointer usage.
BThe program will always run faster.
CMemory will be freed automatically.
DThe task will be deleted immediately.
Step-by-Step Solution
Solution:

  1. Step 1: Understand pvPortMalloc() return value

    pvPortMalloc() returns NULL if memory allocation fails.

  2. Step 2: Consequence of using NULL pointer

    Using a NULL pointer causes undefined behavior and often crashes the program at runtime.

  3. Final Answer:

    It may cause a runtime crash due to null pointer usage. -> Option A

  4. Quick Check:

    Unchecked NULL pointer = crash risk [OK]
Quick Trick: Always check pvPortMalloc() result before use [OK]
Common Mistakes:
  • Assuming allocation always succeeds
  • Thinking memory frees automatically
  • Confusing task deletion with memory errors

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