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-rw-r--r--fs/bio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 29a44c1..5720b94 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);
}