[Solved] Given this FreeRTOS code snippet, what will happen if pvPortMalloc returns NULL? void *ptr = pvPortMalloc(100); if(ptr != NULL) { // Use memory } else { // Handle error } | FreeRTOS

FreeRTOS - Memory Management

Given this FreeRTOS code snippet, what will happen if pvPortMalloc returns NULL?

void *ptr = pvPortMalloc(100);
if(ptr != NULL) {
  // Use memory
} else {
  // Handle error
}

AThe error handling code will run, preventing a crash

BThe program will crash immediately

CMemory will be allocated anyway

DThe system will restart automatically

Step-by-Step Solution

Solution:

Step 1: Understand pvPortMalloc NULL return meaning
pvPortMalloc returns NULL when memory allocation fails.
Step 2: Analyze the if-else structure
If ptr is NULL, the else block runs, handling the error safely to avoid crashes.
Final Answer:
The error handling code will run, preventing a crash -> Option A
Quick Check:
NULL check = Safe error handling [OK]

Quick Trick: Always check pvPortMalloc result before use [OK]

Common Mistakes:

Master "Memory Management" in FreeRTOS

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