splice: handle zero nr_pages in splice_to_pipe()

[cascardo/linux.git] / fs / splice.c

diff --git a/fs/splice.c b/fs/splice.c
index 82bc0d6..19e0b10 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;