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Diffstat (limited to 'blktrace.c')
-rw-r--r--blktrace.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/blktrace.c b/blktrace.c
index e8f2f87..e048f68 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -1066,9 +1066,10 @@ static void close_client_connections(void)
}
}
-static void setup_buts(void)
+static int setup_buts(void)
{
struct list_head *p;
+ int ret = 0;
__list_for_each(p, &devpaths) {
struct blk_user_trace_setup buts;
@@ -1086,10 +1087,14 @@ static void setup_buts(void)
free(dpp->stats);
dpp->stats = calloc(dpp->ncpus, sizeof(*dpp->stats));
memset(dpp->stats, 0, dpp->ncpus * sizeof(*dpp->stats));
- } else
+ } else {
fprintf(stderr, "BLKTRACESETUP(2) %s failed: %d/%s\n",
dpp->path, errno, strerror(errno));
+ ret++;
+ }
}
+
+ return ret;
}
static void start_buts(void)
@@ -2676,7 +2681,8 @@ static int run_tracers(void)
if (net_mode == Net_client)
printf("blktrace: connecting to %s\n", hostname);
- setup_buts();
+ if (setup_buts())
+ return 1;
if (use_tracer_devpaths()) {
if (setup_tracer_devpaths())