ops.info.type should be updated before copying it into the
memory buffer that will be returned to userspace.
Also add some debug messages to help tracking such issues.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---
drivers/media/dvb/dvb-core/dvb_frontend.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index cd3c0f6..1e1265e 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1551,6 +1551,8 @@ static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system)
}
}
}
+ dprintk("change delivery system on cache to %d\n", c->delivery_system);
+
return 0;
}
@@ -1965,9 +1967,6 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
switch (cmd) {
case FE_GET_INFO: {
struct dvb_frontend_info* info = parg;
- memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info));
- dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max);
-
/*
* Associate the 4 delivery systems supported by DVBv3
* API with their DVBv5 counterpart. For the other standards,
@@ -1998,6 +1997,11 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
__func__, c->delivery_system);
fe->ops.info.type = FE_OFDM;
}
+ dprintk("current delivery system on cache: %d, V3 type: %d\n",
+ c->delivery_system, fe->ops.info.type);
+
+ memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info));
+ dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max);
/* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
* do it, it is done for it. */
--
1.7.7.5
--
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