V4L/DVB (5696): M920x: add missing error handling to prevent syslog spamming

Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 18 insertions, 9 deletions

diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c
index c9f1cec341cc..a956bc503a4c 100644
--- a/drivers/media/dvb/dvb-usb/m920x.c
+++ b/drivers/media/dvb/dvb-usb/m920x.c
@@ -407,6 +407,7 @@ static int m920x_identify_state(struct usb_device *udev,
 /* demod configurations */
 static int m920x_mt352_demod_init(struct dvb_frontend *fe)
 {
+        int ret;
         u8 config[] = { CONFIG, 0x3d };
         u8 clock[] = { CLOCK_CTL, 0x30 };
         u8 reset[] = { RESET, 0x80 };
@@ -416,17 +417,25 @@ static int m920x_mt352_demod_init(struct dvb_frontend *fe)
         u8 unk1[] = { 0x93, 0x1a };
         u8 unk2[] = { 0xb5, 0x7a };
 
-        mt352_write(fe, config, ARRAY_SIZE(config));
-        mt352_write(fe, clock, ARRAY_SIZE(clock));
-        mt352_write(fe, reset, ARRAY_SIZE(reset));
-        mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
-        mt352_write(fe, agc, ARRAY_SIZE(agc));
-        mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
-        mt352_write(fe, unk1, ARRAY_SIZE(unk1));
-        mt352_write(fe, unk2, ARRAY_SIZE(unk2));
-
         deb("Demod init!\n");
 
+        if ((ret = mt352_write(fe, config, ARRAY_SIZE(config))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, clock, ARRAY_SIZE(clock))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, reset, ARRAY_SIZE(reset))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, agc, ARRAY_SIZE(agc))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, unk1, ARRAY_SIZE(unk1))) != 0)
+                return ret;
+        if ((ret = mt352_write(fe, unk2, ARRAY_SIZE(unk2))) != 0)
+                return ret;
+
         return 0;
 }