diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/peb.c | 27 | ||||
| -rw-r--r-- | drivers/mtd/ubi/fastmap.c | 3 |
2 files changed, 29 insertions, 1 deletions
diff --git a/drivers/mtd/peb.c b/drivers/mtd/peb.c index c35b63f2fd..388db7f587 100644 --- a/drivers/mtd/peb.c +++ b/drivers/mtd/peb.c @@ -130,6 +130,33 @@ int mtd_num_pebs(struct mtd_info *mtd) } /** + * mtd_skip_bad - skip bad blocks + * @mtd: mtd device + * @pnum: The number of the block + * + * This function skips bad blocks beginning from @pnum. Returns 0 for success and + * a negative error code otherwise. on successful exit @pnum points to the next + * good block. + */ +int mtd_skip_bad(struct mtd_info *mtd, int *pnum) +{ + if (*pnum < 0) + return -EINVAL; + + while (1) { + loff_t offset = (uint64_t)mtd->erasesize * *pnum; + + if (offset >= mtd->size) + return -ENOSPC; + + if (!mtd_block_isbad(mtd, offset)) + return 0; + + *pnum = *pnum + 1; + } +} + +/** * mtd_peb_mark_bad - mark a physical eraseblock as bad * @mtd: mtd device * @pnum: The number of the block diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c index 84c2912bf5..32b60ccad8 100644 --- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -1051,7 +1051,8 @@ int ubi_fastmap_init_checkmap(struct ubi_volume *vol, int leb_count) void ubi_fastmap_destroy_checkmap(struct ubi_volume *vol) { - kfree(vol->checkmap); + if (vol) + kfree(vol->checkmap); } /** |