Fix: zero out data structure before using it

[lttng-tools.git] / src / bin / lttng-sessiond / cmd.c

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index d00bf1e3bdde5acb6ff81c650c571304f38a66ef..73ba7740fd131863172c53ae9e1cb558fe09f323 100644 (file)
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -1439,6 +1439,7 @@ int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain,
                assert(usess);
 
                /* Create the default JUL tracepoint. */
+               memset(&uevent, 0, sizeof(uevent));
                uevent.type = LTTNG_EVENT_TRACEPOINT;
                uevent.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
                strncpy(uevent.name, DEFAULT_JUL_EVENT_NAME, sizeof(uevent.name));
@@ -2147,7 +2148,14 @@ int cmd_calibrate(int domain, struct lttng_calibrate *calibrate)
        {
                struct lttng_kernel_calibrate kcalibrate;
 
-               kcalibrate.type = calibrate->type;
+               switch (calibrate->type) {
+               case LTTNG_CALIBRATE_FUNCTION:
+               default:
+                       /* Default and only possible calibrate option. */
+                       kcalibrate.type = LTTNG_KERNEL_CALIBRATE_KRETPROBE;
+                       break;
+               }
+
                ret = kernel_calibrate(kernel_tracer_fd, &kcalibrate);
                if (ret < 0) {
                        ret = LTTNG_ERR_KERN_ENABLE_FAIL;
@@ -2159,7 +2167,14 @@ int cmd_calibrate(int domain, struct lttng_calibrate *calibrate)
        {
                struct lttng_ust_calibrate ucalibrate;
 
-               ucalibrate.type = calibrate->type;
+               switch (calibrate->type) {
+               case LTTNG_CALIBRATE_FUNCTION:
+               default:
+                       /* Default and only possible calibrate option. */
+                       ucalibrate.type = LTTNG_UST_CALIBRATE_TRACEPOINT;
+                       break;
+               }
+
                ret = ust_app_calibrate_glb(&ucalibrate);
                if (ret < 0) {
                        ret = LTTNG_ERR_UST_CALIBRATE_FAIL;
@@ -2832,12 +2847,17 @@ static int record_ust_snapshot(struct ltt_ust_session *usess,
 
        ret = ust_app_snapshot_record(usess, output, wait, nb_streams);
        if (ret < 0) {
-               if (ret == -EINVAL) {
+               switch (-ret) {
+               case EINVAL:
                        ret = LTTNG_ERR_INVALID;
-                       goto error_snapshot;
+                       break;
+               case ENODATA:
+                       ret = LTTNG_ERR_SNAPSHOT_NODATA;
+                       break;
+               default:
+                       ret = LTTNG_ERR_SNAPSHOT_FAIL;
+                       break;
                }
-
-               ret = LTTNG_ERR_SNAPSHOT_FAIL;
                goto error_snapshot;
        }