Add a check avoid segfault

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index b1ca9217c1f30a1a7bb8eec6452f1c0ecb8c1316..ab5cc48da71ddb317bab84109eb1845b9a7818e5 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -1074,11 +1074,15 @@ int add_file(struct thread_data *td, const char *fname)
        fio_file_reset(f);
 
        if (td->files_size <= td->files_index) {
-               int new_size = td->o.nr_files + 1;
+               unsigned int new_size = td->o.nr_files + 1;
 
                dprint(FD_FILE, "resize file array to %d files\n", new_size);
 
                td->files = realloc(td->files, new_size * sizeof(f));
+               if (td->files == NULL) {
+                       log_err("fio: realloc OOM\n");
+                       assert(0);
+               }
                td->files_size = new_size;
        }
        td->files[cur_files] = f;