[PATCH 6/6] libtracefs sqlhist: Report errors executing the commands

[Steven Rostedt <rostedt@goodmis.org>]

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

If the -e option is set and the parsing succeeds but the executing does
not, sqlhist exits with success. It should instead check the return of the
creation of the histogram or synthetic event and return the error message
on failure and not succeed.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 Documentation/libtracefs-sql.txt | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/Documentation/libtracefs-sql.txt b/Documentation/libtracefs-sql.txt
index 5e48baa4da39..6d606dbcaf88 100644
--- a/Documentation/libtracefs-sql.txt
+++ b/Documentation/libtracefs-sql.txt
@@ -407,8 +407,13 @@ static int do_sql(const char *instance_name,
 			}
 		}
 		tracefs_synth_echo_cmd(&seq, synth);
-		if (execute)
-			tracefs_synth_create(synth);
+		if (execute) {
+			ret = tracefs_synth_create(synth);
+			if (ret < 0) {
+				fprintf(stderr, "%s\n", tracefs_error_last(NULL));
+				exit(-1);
+			}
+		}
 	} else {
 		struct tracefs_instance *instance = NULL;
 		struct tracefs_hist *hist;
@@ -430,8 +435,13 @@ static int do_sql(const char *instance_name,
 			}
 		}
 		tracefs_hist_echo_cmd(&seq, instance, hist, 0);
-		if (execute)
-			tracefs_hist_start(instance, hist);
+		if (execute) {
+			ret = tracefs_hist_start(instance, hist);
+			if (ret < 0) {
+				fprintf(stderr, "%s\n", tracefs_error_last(instance));
+				exit(-1);
+			}
+		}
 	}
 
 	tracefs_synth_free(synth);
-- 
2.35.1