diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/jffs2/wbuf.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 1195d06d437..a7f153f79ec 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -296,10 +296,11 @@ 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); - if (ret == -EBADMSG && retlen == c->wbuf_ofs - start) { - /* ECC recovered */ + /* ECC recovered ? */ + if ((ret == -EUCLEAN || ret == -EBADMSG) && + (retlen == c->wbuf_ofs - start)) ret = 0; - } + if (ret || retlen != c->wbuf_ofs - start) { printk(KERN_CRIT "Old data are already lost in wbuf recovery. Data loss ensues.\n"); @@ -908,20 +909,21 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re down_read(&c->wbuf_sem); ret = c->mtd->read(c->mtd, ofs, len, retlen, buf); - if ( (ret == -EBADMSG) && (*retlen == len) ) { - printk(KERN_WARNING "mtd->read(0x%zx bytes from 0x%llx) returned ECC error\n", - len, ofs); + if ( (ret == -EBADMSG || ret == -EUCLEAN) && (*retlen == len) ) { + if (ret == -EBADMSG) + printk(KERN_WARNING "mtd->read(0x%zx bytes from 0x%llx)" + " returned ECC error\n", len, ofs); /* - * We have the raw data without ECC correction in the buffer, maybe - * we are lucky and all data or parts are correct. We check the node. - * If data are corrupted node check will sort it out. - * We keep this block, it will fail on write or erase and the we - * mark it bad. Or should we do that now? But we should give him a chance. - * Maybe we had a system crash or power loss before the ecc write or - * a erase was completed. + * We have the raw data without ECC correction in the buffer, + * maybe we are lucky and all data or parts are correct. We + * check the node. If data are corrupted node check will sort + * it out. We keep this block, it will fail on write or erase + * and the we mark it bad. Or should we do that now? But we + * should give him a chance. Maybe we had a system crash or + * power loss before the ecc write or a erase was completed. * So we return success. :) */ - ret = 0; + ret = 0; } /* if no writebuffer available or write buffer empty, return */ @@ -943,7 +945,7 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re orbf = (c->wbuf_ofs - ofs); /* offset in read buffer */ if (orbf > len) /* is write beyond write buffer ? */ goto exit; - lwbf = len - orbf; /* number of bytes to copy */ + lwbf = len - orbf; /* number of bytes to copy */ if (lwbf > c->wbuf_len) lwbf = c->wbuf_len; } |