diff options
Diffstat (limited to 'drivers/crypto/ccp/sev-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 0d13d47c164b..b28a6f50daaa 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -259,27 +259,20 @@ static int sev_cmd_buffer_len(int cmd) static struct file *open_file_as_root(const char *filename, int flags, umode_t mode) { - struct file *fp; - struct path root; - struct cred *cred; - const struct cred *old_cred; + struct path root __free(path_put) = {}; task_lock(&init_task); get_fs_root(init_task.fs, &root); task_unlock(&init_task); - cred = prepare_creds(); + CLASS(prepare_creds, cred)(); if (!cred) return ERR_PTR(-ENOMEM); - cred->fsuid = GLOBAL_ROOT_UID; - old_cred = override_creds(cred); - fp = file_open_root(&root, filename, flags, mode); - path_put(&root); - - put_cred(revert_creds(old_cred)); + cred->fsuid = GLOBAL_ROOT_UID; - return fp; + scoped_with_creds(cred) + return file_open_root(&root, filename, flags, mode); } static int sev_read_init_ex_file(void) |