Fix: increment buffer offset when failing to copy from user-space

[lttng-modules.git] / lib / ringbuffer / backend.h

diff --git a/lib/ringbuffer/backend.h b/lib/ringbuffer/backend.h
index 855f1e017a2f5aa6936a7aa9ce521c31d9c1e1e7..d811911020d10f0b9d32e9cfaa3ce18a4ad0ae70 100644 (file)
--- a/lib/ringbuffer/backend.h
+++ b/lib/ringbuffer/backend.h
@@ -313,6 +313,7 @@ fill_buffer:
         * the pollution of static inline code.
         */
        _lib_ring_buffer_memset(bufb, offset, 0, len, 0);
+       ctx->priv.buf_offset += len;
 }
 
 /**
@@ -395,6 +396,7 @@ fill_buffer:
        _lib_ring_buffer_memset(bufb, offset, pad, len - 1, 0);
        offset += len - 1;
        _lib_ring_buffer_memset(bufb, offset, '\0', 1, 0);
+       ctx->priv.buf_offset += len;
 }
 
 /*