From: AKASHI Takahiro takahiro.akashi@linaro.org
The starting cluster number of directory is needed to initialize ".." (parent directory) entry when creating a new directory.
Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org --- fs/fat/fat.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 5aa28656c7d5..10741925bdd4 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -631,6 +631,7 @@ static int get_fs_info(fsdata *mydata)
typedef struct { fsdata *fsdata; /* filesystem parameters */ + unsigned start_clust; /* first cluster */ unsigned clust; /* current cluster */ unsigned next_clust; /* next cluster if remaining == 0 */ int last_cluster; /* set once we've read last cluster */ @@ -663,6 +664,7 @@ static int fat_itr_root(fat_itr *itr, fsdata *fsdata) return -ENXIO;
itr->fsdata = fsdata; + itr->start_clust = 0; itr->clust = fsdata->root_cluster; itr->next_clust = fsdata->root_cluster; itr->dent = NULL; @@ -698,6 +700,7 @@ static void fat_itr_child(fat_itr *itr, fat_itr *parent) assert(fat_itr_isdir(parent));
itr->fsdata = parent->fsdata; + itr->start_clust = clustnum; if (clustnum > 0) { itr->clust = clustnum; itr->next_clust = clustnum;