perf report: Additional config warnings

If the default_sort_order isn't correctly strdup-ed warn and return an
error. Debug warn if no option is matched.

Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Tom Rix <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 6400615b5e98..500f9d8902e7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -143,6 +143,10 @@ static int report__config(const char *var, const char *value, void *cb)
 
 	if (!strcmp(var, "report.sort_order")) {
 		default_sort_order = strdup(value);
+		if (!default_sort_order) {
+			pr_err("Not enough memory for report.sort_order\n");
+			return -1;
+		}
 		return 0;
 	}
 
@@ -151,6 +155,7 @@ static int report__config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
+	pr_debug("%s variable unknown, ignoring...", var);
 	return 0;
 }