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security: keys: annotate implicit fall throughs

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There is a plan to build the kernel with -Wimplicit-fallthrough and
these places in the code produced warnings (W=1). Fix them up.

This commit remove the following warnings:

  security/keys/request_key.c:293:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
  security/keys/request_key.c:298:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
  security/keys/request_key.c:307:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: James Morris <james.morris@microsoft.com>
This commit is contained in:
Mathieu Malaterre 2019-01-14 21:17:25 +01:00 committed by James Morris
parent 0f949bcc7b
commit 23711df7f4
1 changed files with 4 additions and 0 deletions
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4
security/keys/request_key.c
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@ -287,16 +287,19 @@ static int construct_get_dest_keyring(struct key **_dest_keyring)
}
}
/* fall through */
case KEY_REQKEY_DEFL_THREAD_KEYRING:
dest_keyring = key_get(cred->thread_keyring);
if (dest_keyring)
break;
/* fall through */
case KEY_REQKEY_DEFL_PROCESS_KEYRING:
dest_keyring = key_get(cred->process_keyring);
if (dest_keyring)
break;
/* fall through */
case KEY_REQKEY_DEFL_SESSION_KEYRING:
rcu_read_lock();
dest_keyring = key_get(
@ -306,6 +309,7 @@ static int construct_get_dest_keyring(struct key **_dest_keyring)
if (dest_keyring)
break;
/* fall through */
case KEY_REQKEY_DEFL_USER_SESSION_KEYRING:
dest_keyring =
key_get(cred->user->session_keyring);