From 4db8954afa8f7cad2397cfb9312b3eaf24a05df1 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Wed, 9 Jul 2014 17:36:23 -0300
Subject: [PATCH] [media] media: em28xx - add error handling for KWORLD
dvb_attach failures
Add error hanlding when EM2870_BOARD_KWORLD_A340 dvb_attach()
for fe and tuner fail in em28xx_dvb_init().
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
drivers/media/usb/em28xx/em28xx-dvb.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 5f90890b9558b..2cf34efc95175 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1213,9 +1213,17 @@ static int em28xx_dvb_init(struct em28xx *dev)
dvb->fe[0] = dvb_attach(lgdt3305_attach,
&em2870_lgdt3304_dev,
&dev->i2c_adap[dev->def_i2c_bus]);
- if (dvb->fe[0] != NULL)
- dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
- &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
+ if (!dvb->fe[0]) {
+ result = -EINVAL;
+ goto out_free;
+ }
+ if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ &kworld_a340_config)) {
+ dvb_frontend_detach(dvb->fe[0]);
+ result = -EINVAL;
+ goto out_free;
+ }
break;
case EM28174_BOARD_PCTV_290E:
/* set default GPIO0 for LNA, used if GPIOLIB is undefined */