VisionFive2 Linux kernel

author: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-02-18 11:08:17 +0100 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-02-18 16:23:46 +0100 commit: bc6de804d36b3709d54fa22bd128cbac91c11526 parent: 471b12c43f376d5203dbff0e91316eea11f6f4df

Commit Summary:

debugfs: be more robust at handling improper input in debugfs_lookup()

Diffstat:

1 file changed, 1 insertion, 1 deletion

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 2fcf66473436..bbeb563cbe78 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -297,7 +297,7 @@ struct dentry *debugfs_lookup(const char *name, struct dentry *parent)
 {
 	struct dentry *dentry;
 
-	if (IS_ERR(parent))
+	if (!debugfs_initialized() || IS_ERR_OR_NULL(name) || IS_ERR(parent))
 		return NULL;
 
 	if (!parent)