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debugfs: allow bad parent pointers to be passed in
[firefly-linux-kernel-4.4.55.git]
/
fs
/
debugfs
/
inode.c
diff --git
a/fs/debugfs/inode.c
b/fs/debugfs/inode.c
index 96400ab42d135e7d572d29de9d4f3637fedd7817..61e72d44cf94142c1946f9dbc74904b8f31ec98e 100644
(file)
--- a/
fs/debugfs/inode.c
+++ b/
fs/debugfs/inode.c
@@
-254,6
+254,9
@@
static struct dentry *start_creating(const char *name, struct dentry *parent)
pr_debug("debugfs: creating file '%s'\n",name);
+ if (IS_ERR(parent))
+ return parent;
+
error = simple_pin_fs(&debug_fs_type, &debugfs_mount,
&debugfs_mount_count);
if (error)