[PATCH 21/26] pctv452e: don't call BUG_ON() on non-fatal error

[Mauro Carvalho Chehab]

There are some conditions on this driver that are tested with
BUG_ON() with are not serious enough to hang a machine.

So, just return an error if this happens.

Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
---
 drivers/media/usb/dvb-usb/pctv452e.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/pctv452e.c b/drivers/media/usb/dvb-usb/pctv452e.c
index 855fe9d34b59..14bd927c50d8 100644
--- a/drivers/media/usb/dvb-usb/pctv452e.c
+++ b/drivers/media/usb/dvb-usb/pctv452e.c
@@ -109,9 +109,11 @@ static int tt3650_ci_msg(struct dvb_usb_device *d, u8 cmd, u8 *data,
 	unsigned int rlen;
 	int ret;
 
-	BUG_ON(NULL == data && 0 != (write_len | read_len));
-	BUG_ON(write_len > 64 - 4);
-	BUG_ON(read_len > 64 - 4);
+	if (NULL == data && 0 != (write_len | read_len) ||
+	    write_len > 64 - 4) || (read_len > 64 - 4)) {
+		ret = -EIO;
+		goto failed;
+	};
 
 	id = state->c++;
 
-- 
2.7.4