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charset=US-ASCII On Sat, 12 Jul 2025, Cheng-Yang Chou wrote: > Signed-off-by: Cheng-Yang Chou > --- > src/lib/rt-utils.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c > index 6bbd25a..18e515f 100644 > --- a/src/lib/rt-utils.c > +++ b/src/lib/rt-utils.c > @@ -465,6 +465,7 @@ void tracemark(char *fmt, ...) > { > va_list ap; > int len; > + int ret; > > /* bail out if we're not tracing */ > /* or if the kernel doesn't support trace_mark */ > @@ -476,10 +477,14 @@ void tracemark(char *fmt, ...) > va_end(ap); > > /* write the tracemark message */ > - write(tracemark_fd, tracebuf, len); > + ret = write(tracemark_fd, tracebuf, len); > + if (ret != len) > + warn("tracemark write failed"); > > /* now stop any trace */ > - write(trace_fd, "0\n", 2); > + ret = write(trace_fd, "0\n", 2); > + if (ret != 2) > + warn("trace stop write failed"); > } > > void enable_trace_mark(void) > -- > 2.48.1 > > Signed-off-by: John Kacur