*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: wbuf.c,v 1.91 2005/03/18 09:58:06 dedekind Exp $
+ * $Id: wbuf.c,v 1.92 2005/04/05 12:51:54 dedekind Exp $
*
*/
return c->mtd->read(c->mtd, ofs, len, retlen, buf);
/* Read flash */
+ down_read(&c->wbuf_sem);
if (jffs2_cleanmarker_oob(c))
ret = c->mtd->read_ecc(c->mtd, ofs, len, retlen, buf, NULL, c->oobinfo);
else
/* if no writebuffer available or write buffer empty, return */
if (!c->wbuf_pagesize || !c->wbuf_len)
- return ret;;
+ goto exit;
/* if we read in a different block, return */
if (SECTOR_ADDR(ofs) != SECTOR_ADDR(c->wbuf_ofs))
- return ret;
-
- /* Lock only if we have reason to believe wbuf contains relevant data,
- so that checking an erased block during wbuf recovery space allocation
- does not deadlock. */
- down_read(&c->wbuf_sem);
+ goto exit;
if (ofs >= c->wbuf_ofs) {
owbf = (ofs - c->wbuf_ofs); /* offset in write buffer */