Fix: lib_ring_buffer_copy_from_user_inatomic error handling

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

diff --git a/lib/ringbuffer/backend.h b/lib/ringbuffer/backend.h
index e3a0a81afb7a5b6f8bc327dce3c3847ec0a8e0b1..61b7f5394a3ed7be63f73f75c83249b7ce7f2bcb 100644 (file)
--- a/lib/ringbuffer/backend.h
+++ b/lib/ringbuffer/backend.h
@@ -334,8 +334,7 @@ void lib_ring_buffer_copy_from_user_inatomic(const struct lib_ring_buffer_config
                        rpages->p[index].virt + (offset & ~PAGE_MASK),
                        src, len);
                if (unlikely(ret > 0)) {
-                       len -= (pagecpy - ret);
-                       offset += (pagecpy - ret);
+                       /* Copy failed. */
                        goto fill_buffer;
                }
        } else {