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allow finish_no_open(file, ERR_PTR(-E...))

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[ Upstream commit fe91e078b6 ]

... allowing any ->lookup() return value to be passed to it.

Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Al Viro
2025-09-12 11:20:27 -04:00
committed by Greg Kroah-Hartman
parent 47c5304f1f
commit d346157fc4
1 changed files with 6 additions and 4 deletions
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10
fs/open.c
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@@ -1059,18 +1059,20 @@ EXPORT_SYMBOL(finish_open);
* finish_no_open - finish ->atomic_open() without opening the file
*
* @file: file pointer
* @dentry: dentry or NULL (as returned from ->lookup())
* @dentry: dentry, ERR_PTR(-E...) or NULL (as returned from ->lookup())
*
* This can be used to set the result of a successful lookup in ->atomic_open().
* This can be used to set the result of a lookup in ->atomic_open().
*
* NB: unlike finish_open() this function does consume the dentry reference and
* the caller need not dput() it.
*
* Returns "0" which must be the return value of ->atomic_open() after having
* called this function.
* Returns 0 or -E..., which must be the return value of ->atomic_open() after
* having called this function.
*/
int finish_no_open(struct file *file, struct dentry *dentry)
{
if (IS_ERR(dentry))
return PTR_ERR(dentry);
file->f_path.dentry = dentry;
return 0;
}