security: keys: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of letting the code fall
through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Ben Boeckel <mathstuf@gmail.com>

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 1fe8b93..e3d79a7 100644 (file)
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -783,6 +783,7 @@ try_again:
                                if (need_perm != KEY_AUTHTOKEN_OVERRIDE &&
                                    need_perm != KEY_DEFER_PERM_CHECK)
                                        goto invalid_key;
+                               break;
                        case 0:
                                break;
                        }