Fix: meaningful error message

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

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index ff29eb03566775b8cc351296f4dab543a732cc0a..9e2b21b2dd417d7fc217f75de2293ff932f8b43c 100644 (file)
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1845,7 +1845,11 @@ error_open:
 error:
        WARN("No kernel tracer available");
        kernel_tracer_fd = -1;
-       return LTTCOMM_KERN_NA;
+       if (!is_root) {
+               return LTTCOMM_NEED_ROOT_SESSIOND;
+       } else {
+               return LTTCOMM_KERN_NA;
+       }
 }
 
 /*
@@ -3254,7 +3258,11 @@ static int process_client_msg(struct command_ctx *cmd_ctx)
 
        if (opt_no_kernel && need_domain
                        && cmd_ctx->lsm->domain.type == LTTNG_DOMAIN_KERNEL) {
-               ret = LTTCOMM_KERN_NA;
+               if (!is_root) {
+                       ret = LTTCOMM_NEED_ROOT_SESSIOND;
+               } else {
+                       ret = LTTCOMM_KERN_NA;
+               }
                goto error;
        }
 
@@ -3316,7 +3324,7 @@ static int process_client_msg(struct command_ctx *cmd_ctx)
        switch (cmd_ctx->lsm->domain.type) {
        case LTTNG_DOMAIN_KERNEL:
                if (!is_root) {
-                       ret = LTTCOMM_KERN_NA;
+                       ret = LTTCOMM_NEED_ROOT_SESSIOND;
                        goto error;
                }