Completion of error handling

[elfring]

Is there an existing issue for this?

• This is a bug in RetroArch frontend
• I have searched the existing issues

Description

Would you like to add more error handling for return values from functions like the following?

• fclose ⇒ set_gpio
• fprintf ⇒ connmanctl_connect_ssid
• malloc ⇒ slang_process_reflection
• pthread_mutex_init ⇒ raspi_gps_setup

Expected behavior

No response

Steps to reproduce the bug

How do you think about to improve static source code analysis also for this software? 🤔

Version/Commit

1.20.0

Bisect Results

No response

Check in the nightly version

Yes, this is reproduced in the nightly build

Platform & operating system

all

Affected Cores

No response

Environment information

No response

Relevant log output

No response

[zoltanvb]

I would not change 3 of these:

• userland is a baked-in dependency, targeted for removal
• gpio does not look serious, it may be done but no real benefit
• conmanctl is probably not worth to complicate, file is created immediately before and checked

I am not familiar with the shader code so I'll skip the comment on that.