linux-kernel - [PATCH 1/9] security: keys: Fix fall-through warnings for Clang

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Date:   Fri, 27 Nov 2020 16:45:33 +0000
From:   David Howells <dhowells@...hat.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Jarkko Sakkinen <jarkko@...nel.org>, dhowells@...hat.com,
        keyrings@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/9] security: keys: Fix fall-through warnings for Clang

From: Gustavo A. R. Silva <gustavoars@...nel.org>

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@...nel.org>
Signed-off-by: David Howells <dhowells@...hat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
---

 security/keys/process_keys.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 1fe8b934f656..e3d79a7b6db6 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -783,6 +783,7 @@ key_ref_t lookup_user_key(key_serial_t id, unsigned long lflags,
 				if (need_perm != KEY_AUTHTOKEN_OVERRIDE &&
 				    need_perm != KEY_DEFER_PERM_CHECK)
 					goto invalid_key;
+				break;
 			case 0:
 				break;
 			}