If we end up back in the root directory via a '..' directory entry, set itr->is_root accordingly. Failing to do that gives spews like "Invalid FAT entry" and being unable to access directory entries located past the first cluster of the root directory on FAT12/FAT16.
Fixes: 8eafae209c35 ("fat/fs: convert to directory iterators") Signed-off-by: Tuomas Tynkkynen tuomas.tynkkynen@iki.fi --- fs/fat/fat.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 36a309c73c..3d3e17e8fa 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -710,13 +710,14 @@ static void fat_itr_child(fat_itr *itr, fat_itr *parent) itr->fsdata = parent->fsdata; if (clustnum > 0) { itr->clust = clustnum; + itr->is_root = 0; } else { itr->clust = parent->fsdata->root_cluster; + itr->is_root = 1; } itr->dent = NULL; itr->remaining = 0; itr->last_cluster = 0; - itr->is_root = 0; }
static void *next_cluster(fat_itr *itr)