[Coverity CID: 338107] Division or modulo by zero in subsys/shell/backends/shell_uart.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/master/subsys/shell/backends/shell_uart.c

Category: Integer handling issues
Function: async_init
Component: Shell
CID: 338107

Details:

https://github.com/zephyrproject-rtos/zephyr/blob/master/subsys/shell/backends/shell_uart.c#L248

Please fix or provide comments in coverity using the link:

https://scan9.scan.coverity.com/reports.htm#v29271/p12996.

For more information about the violation, check the Coverity Reference. (CWE-369)

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 MAINTAINERS file.