X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fmtd%2Fmtdblock.c;h=6c6d80736fadfb4013871b31795e17354a4d671e;hb=20abd1634a6e2eedb84ca977adea56b8aa06cc3e;hp=af6591237b9b51f22022e61a653fa7a5d8e29845;hpb=16c0cfa425b8e1488f7a1873bd112a7a099325f0;p=~andy%2Flinux

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index af6591237b9..6c6d80736fa 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -321,8 +321,12 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 	mutex_unlock(&mtdblk->cache_mutex);
 
 	if (!--mtdblk->count) {
-		/* It was the last usage. Free the cache */
-		mtd_sync(mbd->mtd);
+		/*
+		 * It was the last usage. Free the cache, but only sync if
+		 * opened for writing.
+		 */
+		if (mbd->file_mode & FMODE_WRITE)
+			mtd_sync(mbd->mtd);
 		vfree(mtdblk->cache_data);
 	}