Ian Rogers bda840191d perf debug: Avoid stack overflow in recursive error message ...

In debug_file, pr_warning_once is called on error. As that function
calls debug_file the function will yield a stack overflow. Switch the
location of the call so the recursion is avoided.

Reviewed-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250228222308.626803-2-irogers@google.com
Fixes: ec49230cf6 ("perf debug: Expose debug file")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

2025-03-11 18:55:37 -07:00

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