[MTD] Only call mtd->sync() method in mtdchar close if opened for write.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 8c86b802f212afa98ca588d06717e46d4b9afe3f..942c88ec5b6a71ded4a4e55507e48774263308cc 100644 (file)
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -135,7 +135,8 @@ static int mtd_close(struct inode *inode, struct file *file)
 
        DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n");
 
-       if (mtd->sync)
+       /* Only sync if opened RW */
+       if ((file->f_mode & 2) && mtd->sync)
                mtd->sync(mtd);
 
        put_mtd_device(mtd);