mtd: do not use mtd->sync directly

This patch teaches 'mtd_sync()' to do nothing when the MTD driver does
not have the '->sync()' method, which allows us to remove all direct
'mtd->sync' accesses.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 496e1a6e802..af6591237b9 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -322,8 +322,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 
         if (!--mtdblk->count) {
                 /* It was the last usage. Free the cache */
-                if (mbd->mtd->sync)
-                        mtd_sync(mbd->mtd);
+                mtd_sync(mbd->mtd);
                 vfree(mtdblk->cache_data);
         }
 
@@ -341,9 +340,7 @@ static int mtdblock_flush(struct mtd_blktrans_dev *dev)
         mutex_lock(&mtdblk->cache_mutex);
         write_cached_data(mtdblk);
         mutex_unlock(&mtdblk->cache_mutex);
-
-        if (dev->mtd->sync)
-                mtd_sync(dev->mtd);
+        mtd_sync(dev->mtd);
         return 0;
 }