[PATCH 1/7] [media] ddbridge/ci: further deduplicate code/logic in ddb_ci_attach()

[Daniel Scheller <d.scheller.oss@gmail.com>]

From: Daniel Scheller <d.scheller@gmx.net>

Deduplicate the checks for a valid ptr in port->en, and also handle the
default case to also catch eventually yet unsupported CI hardware.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
---
 drivers/media/pci/ddbridge/ddbridge-ci.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/media/pci/ddbridge/ddbridge-ci.c b/drivers/media/pci/ddbridge/ddbridge-ci.c
index 5828111487b0..ed19890710d6 100644
--- a/drivers/media/pci/ddbridge/ddbridge-ci.c
+++ b/drivers/media/pci/ddbridge/ddbridge-ci.c
@@ -325,24 +325,20 @@ int ddb_ci_attach(struct ddb_port *port, u32 bitrate)
 	case DDB_CI_EXTERNAL_SONY:
 		cxd_cfg.bitrate = bitrate;
 		port->en = cxd2099_attach(&cxd_cfg, port, &port->i2c->adap);
-		if (!port->en)
-			return -ENODEV;
 		break;
-
 	case DDB_CI_EXTERNAL_XO2:
 	case DDB_CI_EXTERNAL_XO2_B:
 		ci_xo2_attach(port);
-		if (!port->en)
-			return -ENODEV;
 		break;
-
 	case DDB_CI_INTERNAL:
 		ci_attach(port);
-		if (!port->en)
-			return -ENODEV;
 		break;
+	default:
+		return -ENODEV;
 	}
 
+	if (!port->en)
+		return -ENODEV;
 	dvb_ca_en50221_init(port->dvb[0].adap, port->en, 0, 1);
 	return 0;
 }
-- 
2.13.6