Put the trace file into valid JSON format by removing the trailing comma
from the trace file array.
Signed-off-by: Deborah Brouwer <deborah.brouwer@xxxxxxxxxxxxx>
---
utils/v4l2-tracer/v4l2-tracer.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils/v4l2-tracer/v4l2-tracer.cpp b/utils/v4l2-tracer/v4l2-tracer.cpp
index ae6f68e4..7adbe04e 100644
--- a/utils/v4l2-tracer/v4l2-tracer.cpp
+++ b/utils/v4l2-tracer/v4l2-tracer.cpp
@@ -346,7 +346,7 @@ int tracer(int argc, char *argv[], bool retrace)
/* Close the json-array and the trace file. */
trace_file = fopen(trace_filename.c_str(), "a");
- fseek(trace_file, 0L, SEEK_END);
+ ftruncate(fileno(trace_file), lseek(fileno(trace_file), 0, SEEK_END) - 2);
fputs("\n]\n", trace_file);
fclose(trace_file);
--
2.39.0
