mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status()

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / fs / direct-io.c

diff --git a/fs/direct-io.c b/fs/direct-io.c
index c772fdf..44f49d8 100644 (file)
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -823,7 +823,8 @@ out:
         */
        if (sdio->boundary) {
                ret = dio_send_cur_page(dio, sdio, map_bh);
-               dio_bio_submit(dio, sdio);
+               if (sdio->bio)
+                       dio_bio_submit(dio, sdio);
                page_cache_release(sdio->cur_page);
                sdio->cur_page = NULL;
        }