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vfs: do_last(): check LOOKUP_DIRECTORY

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Check for ENOTDIR before finishing open.  This allows this code to be shared
between O_CREAT and plain opens.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Miklos Szeredi 2012-05-21 17:30:11 +02:00 committed by Al Viro
parent 54c33e7f95
commit af2f55426d
1 changed files with 3 additions and 0 deletions
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3
fs/namei.c
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@ -2386,6 +2386,9 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
error = -EISDIR;
if (S_ISDIR(nd->inode->i_mode))
goto exit;
error = -ENOTDIR;
if ((nd->flags & LOOKUP_DIRECTORY) && !nd->inode->i_op->lookup)
goto exit;
ok:
if (!S_ISREG(nd->inode->i_mode))
will_truncate = 0;