mtd: introduce mtd_read interface

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

2 files changed, 6 insertions, 5 deletions

diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index ffdf4fca9c54..c59d642cade2 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -381,7 +381,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 
                 *bad_offset = ofs;
 
-                ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf);
+                ret = mtd_read(c->mtd, ofs, readlen, &retlen, ebuf);
                 if (ret) {
                         printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
                         ret = -EIO;
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index b09e51d2f81f..a24d3d21b63d 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -228,7 +228,7 @@ static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf,
         size_t retlen;
         char *eccstr;
 
-        ret = c->mtd->read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify);
+        ret = mtd_read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify);
         if (ret && ret != -EUCLEAN && ret != -EBADMSG) {
                 printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x failed: %d\n", c->wbuf_ofs, ret);
                 return ret;
@@ -337,7 +337,8 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
                 }
 
                 /* Do the read... */
-                ret = c->mtd->read(c->mtd, start, c->wbuf_ofs - start, &retlen, buf);
+                ret = mtd_read(c->mtd, start, c->wbuf_ofs - start, &retlen,
+                               buf);
 
                 /* ECC recovered ? */
                 if ((ret == -EUCLEAN || ret == -EBADMSG) &&
@@ -948,11 +949,11 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re
         int     ret;
 
         if (!jffs2_is_writebuffered(c))
-                return c->mtd->read(c->mtd, ofs, len, retlen, buf);
+                return mtd_read(c->mtd, ofs, len, retlen, buf);
 
         /* Read flash */
         down_read(&c->wbuf_sem);
-        ret = c->mtd->read(c->mtd, ofs, len, retlen, buf);
+        ret = mtd_read(c->mtd, ofs, len, retlen, buf);
 
         if ( (ret == -EBADMSG || ret == -EUCLEAN) && (*retlen == len) ) {
                 if (ret == -EBADMSG)