OpenCloudOS-Kernel/drivers/media/dvb-core
Mauro Carvalho Chehab ac89758697 Revert "[media] dvb_frontend: return -ENOTTY for unimplement IOCTL"
As reported by Klaus Schmidinger:
 "In VDR I use an ioctl() call with FE_READ_UNCORRECTED_BLOCKS on a
  device (using stb0899).  After this call I check 'errno' for
  EOPNOTSUPP to determine whether this device supports this call.  This
  used to work just fine, until a few months ago I noticed that my
  devices using stb0899 didn't display their signal quality in VDR's OSD
  any more.  After further investigation I found that
  ioctl(FE_READ_UNCORRECTED_BLOCKS) no longer returns EOPNOTSUPP, but
  rather ENOTTY.  And since I stop getting the signal quality in case
  any unknown errno value appears, this broke my signal quality query
  function."

While the changes reflect what is there at:

  http://comments.gmane.org/gmane.linux.kernel/1235728

it does cause regression on userspace.  So, revert it to stop the
damage.

This reverts commit 177ffe506c ("[media] dvb_frontend: return -ENOTTY
for unimplement IOCTL").

Reported-by: Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-15 12:11:23 -08:00
..
Kconfig
Makefile
demux.h
dmxdev.c [media] dmxdev: fix a comparition of unsigned expression warning 2012-10-28 07:38:42 -02:00
dmxdev.h [media] remove include/linux/dvb/dmx.h 2012-10-19 07:29:17 -03:00
dvb-usb-ids.h [media] rtl28xxu: add NOXON DAB/DAB+ USB dongle rev 2 2012-11-28 09:51:22 -02:00
dvb_ca_en50221.c
dvb_ca_en50221.h
dvb_demux.c
dvb_demux.h
dvb_filter.c
dvb_filter.h
dvb_frontend.c Revert "[media] dvb_frontend: return -ENOTTY for unimplement IOCTL" 2013-02-15 12:11:23 -08:00
dvb_frontend.h [media] dvb: LNA implementation changes 2012-10-07 10:27:49 -03:00
dvb_math.c
dvb_math.h
dvb_net.c
dvb_net.h
dvb_ringbuffer.c
dvb_ringbuffer.h
dvbdev.c
dvbdev.h