jerpelea opened a new pull request, #17095:
URL: https://github.com/apache/nuttx/pull/17095
## Summary
Why change is necessary (fix, update, new feature)? Fix - The
temperature sensor driver was using direct pointer casting which could lead to
incorrect memory access and potential runtime crashes.
What functional part of the code is being changed? ESP temperature
sensor driver in arch/xtensa/src/common/espressif/esp_temperature_sensor.c.
How does the change exactly work (what will change and how)? Replaced
direct casting of lower half structure pointer with container_of macro to
safely derive the private structure pointer, ensuring proper type safety.
## Impact
Is new feature added? Is existing feature changed? NO - Bug fix only, no
functional changes.
Impact on user (will user need to adapt to change)? NO - Internal
implementation change only.
Impact on build (will build process change)? NO - No build changes
required.
Impact on hardware (will arch(s) / board(s) / driver(s) change)? YES -
Only affects ESP temperature sensor driver implementation.
Impact on documentation (is update required / provided)? NO - Internal
code fix, no documentation needed.
Impact on security (any sort of implications)? NO - Improves memory
safety but no security implications.
Impact on compatibility (backward/forward/interoperability)? NO - Fully
backward compatible.
Anything else to consider or add? This fix prevents potential memory
corruption issues in temperature sensor operations.
## Testing
nsh> ls /dev/uorb
/dev/uorb:
sensor_temp0
nsh> uorb_listener
Monitor objects num:1
object_name:sensor_temp, object_instance:0
sensor_temp(now:44728730000):timestamp:44728730000,temperature:29.000000
sensor_temp(now:44728840000):timestamp:44728840000,temperature:29.000000
sensor_temp(now:44728950000):timestamp:44728950000,temperature:29.000000
sensor_temp(now:44729060000):timestamp:44729060000,temperature:29.000000
sensor_temp(now:44729170000):timestamp:44729170000,temperature:29.000000
sensor_temp(now:44729280000):timestamp:44729280000,temperature:29.000000
sensor_temp(now:44729390000):timestamp:44729390000,temperature:30.000000
sensor_temp(now:44729500000):timestamp:44729500000,temperature:30.000000
sensor_temp(now:44729610000):timestamp:44729610000,temperature:30.000000
sensor_temp(now:44729720000):timestamp:44729720000,temperature:30.000000
sensor_temp(now:44729830000):timestamp:44729830000,temperature:30.000000
sensor_temp(now:44729940000):timestamp:44729940000,temperature:30.000000
sensor_temp(now:44730050000):timestamp:44730050000,temperature:29.000000
sensor_temp(now:44730160000):timestamp:44730160000,temperature:29.000000
sensor_temp(now:44730270000):timestamp:44730270000,temperature:29.000000
sensor_temp(now:44730380000):timestamp:44730380000,temperature:29.000000
sensor_temp(now:44730490000):timestamp:44730490000,temperature:29.000000
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