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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2011-01-19 21:08:41 +0900 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-21 01:10:41 -0400 |
| commit | c212f9aaf9101a037fb7f59e75e639437e11d758 (patch) | |
| tree | da00b3e84fa5ffc7648c14593aaf1cbb4931c229 /fs/open.c | |
| parent | aa597bc1f9476d0527e35d6dd9b481422e8205a0 (diff) | |
| download | lwn-c212f9aaf9101a037fb7f59e75e639437e11d758.tar.gz lwn-c212f9aaf9101a037fb7f59e75e639437e11d758.zip | |
fs: Use BUG_ON(!mnt) at dentry_open().
dentry_open() requires callers to pass a valid vfsmount.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/open.c')
| -rw-r--r-- | fs/open.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/fs/open.c b/fs/open.c index f83ca80cc59a..b52cf013ffa1 100644 --- a/fs/open.c +++ b/fs/open.c @@ -835,17 +835,8 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, validate_creds(cred); - /* - * We must always pass in a valid mount pointer. Historically - * callers got away with not passing it, but we must enforce this at - * the earliest possible point now to avoid strange problems deep in the - * filesystem stack. - */ - if (!mnt) { - printk(KERN_WARNING "%s called with NULL vfsmount\n", __func__); - dump_stack(); - return ERR_PTR(-EINVAL); - } + /* We must always pass in a valid mount pointer. */ + BUG_ON(!mnt); error = -ENFILE; f = get_empty_filp(); |