[Coverity CID :216798] Unused value in subsys/net/lib/sockets/socketpair.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/f91e9fba51e5da46ee5c6822f8656713d74a6ecf/subsys/net/lib/sockets/socketpair.c#L704

Category: Code maintainability issues
Function: spair_read
Component: Networking
CID: 216798

Details:

698    
699         res = k_pipe_get(&spair->recv_q, (void *)buffer, count, &bytes_read,
700                  1, K_NO_WAIT);
701         __ASSERT(res == 0, "k_pipe_get() failed: %d", res);
702    
703         if (is_connected) {
>>>     CID 216798:  Code maintainability issues  (UNUSED_VALUE)
>>>     Assigning value from "k_poll_signal_raise(&spair->read_signal, SPAIR_SIG_DATA)" to "res" here, but that stored value is overwritten before it can be used.
704             res = k_poll_signal_raise(&spair->read_signal, SPAIR_SIG_DATA);
705             __ASSERT(res == 0, "k_poll_signal_raise() failed: %d", res);
706         }
707    
708         res = bytes_read;
709    

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.

[cfriedt]

Marked this as a false positive in coverity, as the variable is used in that particular scope when assertions are enabled.