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* [PATCH] libtracefs: Return negative number when tracefs_filter_string_append() fails
@ 2022-07-22 20:17 Steven Rostedt
  0 siblings, 0 replies; only message in thread
From: Steven Rostedt @ 2022-07-22 20:17 UTC (permalink / raw)
  To: Linux Trace Devel

From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

If the field passed into tracefs_filter_string_append() does not match a
field of the event, or if the value is not proper, it fails to append the
filter, but still returns 0 as it was successful.

Return -1 if it fails.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 src/tracefs-filter.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tracefs-filter.c b/src/tracefs-filter.c
index 85d0be17f6b7..b16dfadb3aa9 100644
--- a/src/tracefs-filter.c
+++ b/src/tracefs-filter.c
@@ -423,7 +423,8 @@ int tracefs_filter_string_append(struct tep_event *event, char **filter,
 		free(*filter);
 		*filter = str;
 	}
-	return 0;
+
+	return ret;
 }
 
 static int error_msg(char **err, char *str,
-- 
2.35.1


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2022-07-22 20:17 [PATCH] libtracefs: Return negative number when tracefs_filter_string_append() fails Steven Rostedt

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