diff options
-rw-r--r-- | fs/open.c | 13 |
1 files changed, 2 insertions, 11 deletions
@@ -835,17 +835,8 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, | |||
835 | 835 | ||
836 | validate_creds(cred); | 836 | validate_creds(cred); |
837 | 837 | ||
838 | /* | 838 | /* We must always pass in a valid mount pointer. */ |
839 | * We must always pass in a valid mount pointer. Historically | 839 | BUG_ON(!mnt); |
840 | * callers got away with not passing it, but we must enforce this at | ||
841 | * the earliest possible point now to avoid strange problems deep in the | ||
842 | * filesystem stack. | ||
843 | */ | ||
844 | if (!mnt) { | ||
845 | printk(KERN_WARNING "%s called with NULL vfsmount\n", __func__); | ||
846 | dump_stack(); | ||
847 | return ERR_PTR(-EINVAL); | ||
848 | } | ||
849 | 840 | ||
850 | error = -ENFILE; | 841 | error = -ENFILE; |
851 | f = get_empty_filp(); | 842 | f = get_empty_filp(); |