arm64: dts: rockchip: fix sdmmc1_bus4 pinctrl for rk3328

[firefly-linux-kernel-4.4.55.git] / fs / splice.c

diff --git a/fs/splice.c b/fs/splice.c
index 4cf700d50b4037e6c334b0647cdb81b816f9ef65..8398974e15380dbeb8a93e56f81c69614e798323 100644 (file)
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -185,6 +185,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
        unsigned int spd_pages = spd->nr_pages;
        int ret, do_wakeup, page_nr;
 
+       if (!spd_pages)
+               return 0;
+
        ret = 0;
        do_wakeup = 0;
        page_nr = 0;
@@ -208,6 +211,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
                        buf->len = spd->partial[page_nr].len;
                        buf->private = spd->partial[page_nr].private;
                        buf->ops = spd->ops;
+                       buf->flags = 0;
                        if (spd->flags & SPLICE_F_GIFT)
                                buf->flags |= PIPE_BUF_FLAG_GIFT;