Assert that dynamic buffer size <= capacity

[lttng-tools.git] / src / common / dynamic-buffer.c

diff --git a/src/common/dynamic-buffer.c b/src/common/dynamic-buffer.c
index ea26a51aca78297cea5b1a7b97840cdec97cf884..7184a3400888ce602c9ec59377ee9c426fc3a5ee 100644 (file)
--- a/src/common/dynamic-buffer.c
+++ b/src/common/dynamic-buffer.c
@@ -55,7 +55,8 @@ int lttng_dynamic_buffer_append(struct lttng_dynamic_buffer *buffer,
                goto end;
        }
 
-       if ((buffer->capacity - buffer->size) < len) {
+       assert(buffer->capacity >= buffer->size);
+       if (buffer->capacity < (len + buffer->size)) {
                ret = lttng_dynamic_buffer_set_capacity(buffer,
                                buffer->capacity +
                                (len - (buffer->capacity - buffer->size)));