mtd: introduce mtd_point interface

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index ee57bac..dde61ef 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -63,8 +63,8 @@
 	/* TODO: instead, incapsulate point() stuff to jffs2_flash_read(),
 	 * adding and jffs2_flash_read_end() interface. */
 	if (c->mtd->point) {
-		err = c->mtd->point(c->mtd, ofs, len, &retlen,
-				    (void **)&buffer, NULL);
+		err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer,
+				NULL);
 		if (!err && retlen < len) {
 			JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
 			c->mtd->unpoint(c->mtd, ofs, retlen);