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authorAl Viro <viro@zeniv.linux.org.uk>2025-12-14 03:32:45 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2026-01-16 12:52:04 -0500
commit0787a93baa1aab9fd0cb8500105d11d3d3a58f7a (patch)
tree70693e1f02cec536f8ab1445c1d54968b22ba70f /fs
parent9b323d2f474071cc6c627f73af301ba6f5e2b83f (diff)
sysfs(2): fs_index() argument is _not_ a pathname
... it's a filesystem type name. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/filesystems.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 95e5256821a5..0c7d2b7ac26c 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -132,24 +132,21 @@ EXPORT_SYMBOL(unregister_filesystem);
static int fs_index(const char __user * __name)
{
struct file_system_type * tmp;
- struct filename *name;
+ char *name __free(kfree) = strndup_user(__name, PATH_MAX);
int err, index;
- name = getname(__name);
- err = PTR_ERR(name);
if (IS_ERR(name))
- return err;
+ return PTR_ERR(name);
err = -EINVAL;
read_lock(&file_systems_lock);
for (tmp=file_systems, index=0 ; tmp ; tmp=tmp->next, index++) {
- if (strcmp(tmp->name, name->name) == 0) {
+ if (strcmp(tmp->name, name) == 0) {
err = index;
break;
}
}
read_unlock(&file_systems_lock);
- putname(name);
return err;
}