1 files changed, 3 insertions, 1 deletions

diff --git a/fs/bio.c b/fs/bio.c
index 29a44c1b64c6..5720b940bb5f 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1018,6 +1018,8 @@ void bio_endio(struct bio *bio, unsigned int bytes_done, int error)
 {
         if (error)
                 clear_bit(BIO_UPTODATE, &bio->bi_flags);
+        else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+                error = -EIO;
 
         if (unlikely(bytes_done > bio->bi_size)) {
                 printk("%s: want %u bytes done, only %u left\n", __FUNCTION__,
@@ -1028,7 +1030,7 @@ void bio_endio(struct bio *bio, unsigned int bytes_done, int error)
         bio->bi_size -= bytes_done;
         bio->bi_sector += (bytes_done >> 9);
 
-        if (bio->bi_end_io)
+        if (bio->bi_size && bio->bi_end_io)
                 bio->bi_end_io(bio, bytes_done, error);
 }