[Coverity CID :215261] Explicit null dereferenced in subsys/emul/emul_bmi160.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/c9a2a5e7fb0194bfb168f5aa1a0a83c73f62acb3/subsys/emul/emul_bmi160.c#L213

Category: Null pointer dereferences
Function: bmi160_emul_io_spi
Component: Other
CID: 215261

Details:

199                 regn = *(uint8_t *)tx->buf;
200                 switch (txd->len) {
201                 case 1:
202                     if (regn & BMI160_REG_READ) {
203                         regn &= BMI160_REG_MASK;
204                         val = reg_read(cfg, regn);
>>>     CID 215261:    (FORWARD_NULL)
>>>     Dereferencing null pointer "rxd".
205                         *(uint8_t *)rxd->buf = val;
206                     } else {
207                         val = *(uint8_t *)txd->buf;
208                         reg_write(cfg, regn, val);
209                     }
210                     break;
207                         val = *(uint8_t *)txd->buf;
208                         reg_write(cfg, regn, val);
209                     }
210                     break;
211                 case BMI160_SAMPLE_SIZE:
212                     if (regn & BMI160_REG_READ) {
>>>     CID 215261:    (FORWARD_NULL)
>>>     Dereferencing null pointer "rxd".
213                         sample_read(data, rxd->buf);
214                     } else {
215                         LOG_INF("Unknown sample write");
216                     }
217                     break;
218                 default:

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.

[sjg20]

#29799