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| author | Ian Rogers <irogers@google.com> | 2025-03-01 01:22:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 15:39:24 +0300 |
| commit | 7cd1096d3bead15446433559e4419bbffa033e03 (patch) | |
| tree | d5bf4ae234b5d478c76328ebe38dc38a7e4a2c63 /tools/perf/util/debug.c | |
| parent | 7a40b52d4442178bee0cf1c36bc450ab951cef0f (diff) | |
| download | linux-7cd1096d3bead15446433559e4419bbffa033e03.tar.xz | |
perf debug: Avoid stack overflow in recursive error message
[ Upstream commit bda840191d2aae3b7cadc3ac21835dcf29487191 ]
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: ec49230cf6dda704 ("perf debug: Expose debug file")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/util/debug.c')
| -rw-r--r-- | tools/perf/util/debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c index d633d15329fa..e56330c85fe7 100644 --- a/tools/perf/util/debug.c +++ b/tools/perf/util/debug.c @@ -46,8 +46,8 @@ int debug_type_profile; FILE *debug_file(void) { if (!_debug_file) { - pr_warning_once("debug_file not set"); debug_set_file(stderr); + pr_warning_once("debug_file not set"); } return _debug_file; } |