提交 40b39136 编写于 作者: A Al Viro

path_openat: clean ELOOP handling a bit

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
上级 f374ed5f
......@@ -2320,11 +2320,12 @@ static struct file *path_openat(int dfd, const char *pathname,
struct path link = path;
struct inode *linki = link.dentry->d_inode;
void *cookie;
error = -ELOOP;
if (!(nd.flags & LOOKUP_FOLLOW))
goto exit_dput;
if (count++ == 32)
goto exit_dput;
if (!(nd.flags & LOOKUP_FOLLOW) || count++ == 32) {
path_put_conditional(&path, &nd);
path_put(&nd.path);
filp = ERR_PTR(-ELOOP);
break;
}
/*
* This is subtle. Instead of calling do_follow_link() we do
* the thing by hands. The reason is that this way we have zero
......@@ -2355,9 +2356,6 @@ static struct file *path_openat(int dfd, const char *pathname,
release_open_intent(&nd);
return filp;
exit_dput:
path_put_conditional(&path, &nd);
path_put(&nd.path);
out_filp:
filp = ERR_PTR(error);
goto out;
......
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