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path: root/drivers/mtd/mtdblock.c
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Diffstat (limited to 'drivers/mtd/mtdblock.c')
-rw-r--r--drivers/mtd/mtdblock.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index af6591237b9b..6c6d80736fad 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);
}