If new_size was zero or realloc failed, it would be segment fault.
So add a check.
Signed-off-by: Jianpeng Ma <majianpeng@xxxxxxxxx>
---
filesetup.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/filesetup.c b/filesetup.c
index b1ca921..324e9a6 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -1077,8 +1077,11 @@ int add_file(struct thread_data *td, const char *fname)
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;
--
1.7.9.5
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