diff options
Diffstat (limited to 'ubi-utils/ubiformat.c')
| -rw-r--r-- | ubi-utils/ubiformat.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/ubi-utils/ubiformat.c b/ubi-utils/ubiformat.c index ed2b8d0..a265a9a 100644 --- a/ubi-utils/ubiformat.c +++ b/ubi-utils/ubiformat.c @@ -442,7 +442,7 @@ static int mark_bad(const struct mtd_dev_info *mtd, struct ubi_scan_info *si, in static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd, const struct ubigen_info *ui, struct ubi_scan_info *si) { - int fd, img_ebs, eb, written_ebs = 0, divisor; + int fd, img_ebs, eb, written_ebs = 0, divisor, skip_data_read = 0; off_t st_size; fd = open_file(&st_size); @@ -501,12 +501,15 @@ static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd, continue; } - err = read_all(fd, buf, mtd->eb_size); - if (err) { - sys_errmsg("failed to read eraseblock %d from \"%s\"", - written_ebs, args.image); - goto out_close; + if (!skip_data_read) { + err = read_all(fd, buf, mtd->eb_size); + if (err) { + sys_errmsg("failed to read eraseblock %d from \"%s\"", + written_ebs, args.image); + goto out_close; + } } + skip_data_read = 0; if (args.override_ec) ec = args.ec; @@ -547,6 +550,13 @@ static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd, if (mark_bad(mtd, si, eb)) goto out_close; } + + /* + * We have to make sure that we do not read next block + * of data from the input image or stdin - we have to + * write buf first instead. + */ + skip_data_read = 1; continue; } if (++written_ebs >= img_ebs) |