[PATCH 01/18] security: keys: Fix fall-through warnings for Clang

From: David Howells
Date: Wed Dec 09 2020 - 07:22:13 EST


From: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
---

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;
}