[Coverity CID :207978] Dereference after null check in subsys/canbus/canopen/CO_driver.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/a3e89e84a801d9bc048b0ee2177f0fb11d1a925a/subsys/canbus/canopen/CO_driver.c#L298

Category: Null pointer dereferences
Function: CO_CANtxBufferInit
Component: Other
CID: 207978

Details:

292                        bool_t syncFlag)
293     {
294         CO_CANtx_t *buffer;
295    
296         if (!CANmodule || (index >= CANmodule->tx_size)) {
297             LOG_ERR("failed to initialize CAN rx buffer, illegal argument");
>>>     CID 207978:  Null pointer dereferences  (FORWARD_NULL)
>>>     Dereferencing null pointer "CANmodule".
298             CO_errorReport(CANmodule->em, CO_EM_GENERIC_SOFTWARE_ERROR,
299                        CO_EMC_SOFTWARE_INTERNAL, 0);
300             return NULL;
301         }
302    
303         buffer = &CANmodule->tx_array[index];

Please fix or provide comments in coverity using the link:

https://scan9.coverity.com/reports.htm#v32951/p12996.

Note: This issue was created automatically. Priority was set based on classification
of the file affected and the impact field in coverity. Assignees were set using the CODEOWNERS file.