diff options
Diffstat (limited to 'cpukit/libfs/src/dosfs/fat_fat_operations.c')
| -rw-r--r-- | cpukit/libfs/src/dosfs/fat_fat_operations.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/cpukit/libfs/src/dosfs/fat_fat_operations.c b/cpukit/libfs/src/dosfs/fat_fat_operations.c index c4f82805e8..756af99c90 100644 --- a/cpukit/libfs/src/dosfs/fat_fat_operations.c +++ b/cpukit/libfs/src/dosfs/fat_fat_operations.c @@ -46,7 +46,8 @@ fat_scan_fat_for_free_clusters( uint32_t *chain, uint32_t count, uint32_t *cls_added, - uint32_t *last_cl + uint32_t *last_cl, + bool zero_fill ) { int rc = RC_OK; @@ -113,14 +114,16 @@ fat_scan_fat_for_free_clusters( rc = fat_set_fat_cluster(mt_entry, save_cln, cl4find); if ( rc != RC_OK ) - { - /* cleanup activity */ - fat_free_fat_clusters_chain(mt_entry, (*chain)); - /* trying to save last allocated cluster for future use */ - fat_set_fat_cluster(mt_entry, cl4find, FAT_GENFAT_FREE); - fat_buf_release(fs_info); - return rc; - } + goto cleanup; + } + + if (zero_fill) { + uint32_t sec = fat_cluster_num_to_sector_num(mt_entry, + cl4find); + + rc = _fat_block_zero(mt_entry, sec, 0, fs_info->vol.bpc); + if ( rc != RC_OK ) + goto cleanup; } save_cln = cl4find; @@ -150,6 +153,15 @@ fat_scan_fat_for_free_clusters( *last_cl = save_cln; fat_buf_release(fs_info); return RC_OK; + +cleanup: + + /* cleanup activity */ + fat_free_fat_clusters_chain(mt_entry, (*chain)); + /* trying to save last allocated cluster for future use */ + fat_set_fat_cluster(mt_entry, cl4find, FAT_GENFAT_FREE); + fat_buf_release(fs_info); + return rc; } /* fat_free_fat_clusters_chain -- |