diff options
| author | Luca Boccassi <luca.boccassi@microsoft.com> | 2021-07-30 15:56:11 +0100 |
|---|---|---|
| committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2022-03-30 22:31:30 +0200 |
| commit | a0c0f38cb947a16a5aebf2b59fb8481866d28f96 (patch) | |
| tree | cdb566c89666f62b78bd3e432140aa86b23bf67a /lib/sqfs/read_tree.c | |
| parent | 7667b84cc34707c28ca0db8d24f046ec34e8c25d (diff) | |
sqfs_dir_tree_destroy/sqfs_destroy: allow NULL input
Many library destructor functions (like free()) allow a NULL
pointer as input, and do nothing in that case.
This allows easier cleanup patterns: initialize pointers to NULL
and then always pass them to the destroyer functions, no need for
verbose goto/if-else patterns.
Signed-off-by: Luca Boccassi <luca.boccassi@microsoft.com>
Diffstat (limited to 'lib/sqfs/read_tree.c')
| -rw-r--r-- | lib/sqfs/read_tree.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqfs/read_tree.c b/lib/sqfs/read_tree.c index 802446a..feda691 100644 --- a/lib/sqfs/read_tree.c +++ b/lib/sqfs/read_tree.c @@ -179,6 +179,9 @@ void sqfs_dir_tree_destroy(sqfs_tree_node_t *root) { sqfs_tree_node_t *it; + if (!root) + return; + while (root->children != NULL) { it = root->children; root->children = it->next; |