1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index 1a21191566f5..de7adaf5fa5b 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -820,6 +820,15 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
         int ret;
         unsigned frequency = params->frequency / 62500;
 
+        if (!tun->stepsize) {
+                /* tuner-core was loaded before the digital tuner was
+                 * configured and somehow picked the wrong tuner type */
+                tuner_err("attempt to treat tuner %d (%s) as digital tuner "
+                          "without stepsize defined.\n",
+                          priv->type, priv->tun->name);
+                return 0; /* failure */
+        }
+
         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
         if (ret < 0)