* [RFC] perf script: Completing error handling?
@ 2024-07-17 13:55 Markus Elfring
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From: Markus Elfring @ 2024-07-17 13:55 UTC (permalink / raw)
To: linux-perf-users, kernel-janitors, Adrian Hunter,
Alexander Shishkin, Arnaldo Carvalho de Melo, Ian Rogers,
Ingo Molnar, Jiri Olsa, Kan Liang, Mark Rutland, Namhyung Kim,
Peter Zijlstra
Cc: LKML
Hello,
I noticed that source code like “printed += fprintf(fp, …)” is used
in some function implementations.
https://elixir.bootlin.com/linux/v6.10/source/tools/perf/builtin-script.c#L697
I find that return values should be checked somehow at 63 places.
See also:
* https://cwe.mitre.org/data/definitions/252.html
* https://wiki.sei.cmu.edu/confluence/display/c/POS54-C.+Detect+and+handle+POSIX+library+errors
Regards,
Markus
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2024-07-17 13:55 [RFC] perf script: Completing error handling? Markus Elfring
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