[media] em28xx: initial support for HAUPPAUGE HVR-930C again

With this patch I try again to add initial support for HVR930C.

Tested only DVB-T, since in Italy Analog service is stopped.

Actually "scan -a0 -f1", find only about 50 channel while 400 should
be available.

[mchehab@redhat.com: Tested with DVB-C and fixed a few whitespace issues]
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Eddi De Pieri <eddi@depieri.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c
index ecd1f95726e2..048f48944aa1 100644
--- a/drivers/media/common/tuners/xc5000.c
+++ b/drivers/media/common/tuners/xc5000.c
@@ -1004,6 +1004,8 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
         struct xc5000_priv *priv = fe->tuner_priv;
         int ret = 0;
 
+        mutex_lock(&xc5000_list_mutex);
+
         if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) {
                 ret = xc5000_fwupload(fe);
                 if (ret != XC_RESULT_SUCCESS)
@@ -1023,6 +1025,8 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
         /* Default to "CABLE" mode */
         ret |= xc_write_reg(priv, XREG_SIGNALSOURCE, XC_RF_MODE_CABLE);
 
+        mutex_unlock(&xc5000_list_mutex);
+
         return ret;
 }