[PATCH] blockdev direct_io: fix signedness bug

size_t is unsigned.  IO errors aren't getting through.

Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 8b18e43b82fe8e156bab431070a882ea5cb9a5bf..da020be25dd2429004e43cb61988293daab86854 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -146,7 +146,7 @@ static int blk_end_aio(struct bio *bio, unsigned int bytes_done, int error)
                iocb->ki_nbytes = -EIO;
 
        if (atomic_dec_and_test(bio_count)) {
-               if (iocb->ki_nbytes < 0)
+               if ((long)iocb->ki_nbytes < 0)
                        aio_complete(iocb, iocb->ki_nbytes, 0);
                else
                        aio_complete(iocb, iocb->ki_left, 0);