[media] lgdt330x: warn on errors blasting modulation config to the lgdt3303

fix the following build warning:

lgdt330x.c: In function "lgdt330x_set_parameters":
lgdt330x.c:346:6: warning: variable "err" set but not used
[-Wunused-but-set-variable]

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/media/dvb/frontends/lgdt330x.c b/drivers/media/dvb/frontends/lgdt330x.c
index d45827158a24..c39d8d63979b 100644
--- a/drivers/media/dvb/frontends/lgdt330x.c
+++ b/drivers/media/dvb/frontends/lgdt330x.c
@@ -347,7 +347,7 @@ static int lgdt330x_set_parameters(struct dvb_frontend* fe,
 
         static u8 top_ctrl_cfg[]   = { TOP_CONTROL, 0x03 };
 
-        int err;
+        int err = 0;
         /* Change only if we are actually changing the modulation */
         if (state->current_modulation != param->u.vsb.modulation) {
                 switch(param->u.vsb.modulation) {
@@ -402,6 +402,11 @@ static int lgdt330x_set_parameters(struct dvb_frontend* fe,
                         printk(KERN_WARNING "lgdt330x: %s: Modulation type(%d) UNSUPPORTED\n", __func__, param->u.vsb.modulation);
                         return -1;
                 }
+                if (err < 0)
+                        printk(KERN_WARNING "lgdt330x: %s: error blasting "
+                               "bytes to lgdt3303 for modulation type(%d)\n",
+                               __func__, param->u.vsb.modulation);
+
                 /*
                  * select serial or parallel MPEG harware interface
                  * Serial:   0x04 for LGDT3302 or 0x40 for LGDT3303