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do_last(): take fput() on error after opening to out:

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make it conditional on *opened & FILE_OPENED; in addition to getting
rid of exit_fput: thing, it simplifies atomic_open() cleanup on
may_open() failure.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-04-27 03:14:20 -04:00
parent 47f9dbd387
commit fe9ec8291f
1 changed files with 5 additions and 17 deletions
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22
fs/namei.c
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@ -2919,9 +2919,6 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry,
acc_mode = 0;
}
error = may_open(&file->f_path, acc_mode, open_flag);
if (error)
fput(file);
out:
dput(dentry);
return error;
@ -3225,18 +3222,13 @@ finish_open_created:
}
opened:
error = open_check_o_direct(file);
if (error)
goto exit_fput;
error = ima_file_check(file, op->acc_mode, *opened);
if (error)
goto exit_fput;
if (will_truncate) {
if (!error)
error = ima_file_check(file, op->acc_mode, *opened);
if (!error && will_truncate)
error = handle_truncate(file);
if (error)
goto exit_fput;
}
out:
if (unlikely(error) && (*opened & FILE_OPENED))
fput(file);
if (unlikely(error > 0)) {
WARN_ON(1);
error = -EINVAL;
@ -3246,10 +3238,6 @@ out:
path_put(&save_parent);
return error;
exit_fput:
fput(file);
goto out;
stale_open:
/* If no saved parent or already retried then can't retry */
if (!save_parent.dentry || retried)