linux-hardening - [PATCH 014/141] media: usb: dvb-usb-v2: Fix fall-through warnings for Clang

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Message-ID: <173371a50a3e26a2ab39baaa6aa883f6bd416b8a.1605896059.git.gustavoars@kernel.org>
Date:   Fri, 20 Nov 2020 12:26:16 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Malcolm Priestley <tvboxspy@...il.com>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH 014/141] media: usb: dvb-usb-v2: Fix fall-through warnings
 for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding a couple of break statements instead of
just 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>
---
 drivers/media/usb/dvb-usb-v2/af9015.c  | 1 +
 drivers/media/usb/dvb-usb-v2/lmedm04.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index c70b3cef3176..d33514acc2b5 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -51,6 +51,7 @@ static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
 		if (((req->addr & 0xff00) == 0xff00) ||
 		    ((req->addr & 0xff00) == 0xae00))
 			state->buf[0] = WRITE_VIRTUAL_MEMORY;
+		break;
 	case WRITE_VIRTUAL_MEMORY:
 	case COPY_FIRMWARE:
 	case DOWNLOAD_FIRMWARE:
diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index 5a7a9522d46d..67c37fb267e3 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -336,6 +336,7 @@ static void lme2510_int_response(struct urb *lme_urb)
 				st->signal_level = ibuf[5];
 				st->signal_sn = ibuf[4];
 				st->time_key = ibuf[7];
+				break;
 			default:
 				break;
 			}
-- 
2.27.0