[media] tda1004x: only update the frontend properties if locked
authorMauro Carvalho Chehab <mchehab@osg.samsung.com>
Wed, 3 Feb 2016 19:33:48 +0000 (17:33 -0200)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Thu, 4 Feb 2016 11:10:45 +0000 (09:10 -0200)
commite8beb02343e7582980c6705816cd957cf4f74c7a
treeed887040712ac2802f5d3e1c466757a276d717ac
parent329d88da4df9a96da43018aceabd3a06e6a7e7ae
[media] tda1004x: only update the frontend properties if locked

The tda1004x was updating the properties cache before locking.
If the device is not locked, the data at the registers are just
random values with no real meaning.

This caused the driver to fail with libdvbv5, as such library
calls GET_PROPERTY from time to time, in order to return the
DVB stats.

Tested with a saa7134 card 78:
ASUSTeK P7131 Dual, vendor PCI ID: 1043:4862

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/dvb-frontends/tda1004x.c