[PATCH] Avoid unnecessary ide-cd cache flushes

Only issue a cdrom cache flush if we've done write to the drive.  The
->media_written() flag keeps track of that.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 9deca49c71f0..beaa561f2ed8 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -645,7 +645,7 @@ static int cdrom_mrw_exit(struct cdrom_device_info *cdi)
                 ret = cdrom_mrw_bgformat_susp(cdi, 0);
         }
 
-        if (!ret)
+        if (!ret && cdi->media_written)
                 ret = cdrom_flush_cache(cdi);
 
         return ret;