Check for context name duplicata

[lttng-modules.git] / lttng-context-nice.c

diff --git a/lttng-context-nice.c b/lttng-context-nice.c
index bfe688ef1084c1b1c8a327f383ef01dbf1281240..9b99b54924650b1da1b510bb4255da2380d3f193 100644 (file)
--- a/lttng-context-nice.c
+++ b/lttng-context-nice.c
@@ -44,6 +44,10 @@ int lttng_add_nice_to_ctx(struct lttng_ctx **ctx)
        field = lttng_append_context(ctx);
        if (!field)
                return -ENOMEM;
+       if (lttng_find_context(*ctx, "nice")) {
+               lttng_remove_context_field(ctx, field);
+               return -EEXIST;
+       }
        field->event_field.name = "nice";
        field->event_field.type.atype = atype_integer;
        field->event_field.type.u.basic.integer.size = sizeof(int) * CHAR_BIT;