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ac89758697
linux/drivers/media
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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
..
common [media] siano: fix build with allmodconfig 2012-11-23 13:48:39 -02:00
dvb-core Revert "[media] dvb_frontend: return -ENOTTY for unimplement IOCTL" 2013-02-15 12:11:23 -08:00
dvb-frontends Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-12-13 19:22:22 -08:00
firewire [media] remove include/linux/dvb/dmx.h 2012-10-19 07:29:17 -03:00
i2c Linux 3.8-rc3 2013-01-11 13:28:19 -02:00
mmc Drivers: media: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
parport [media] Add missing help for some menuconfig items 2012-08-21 08:17:37 -03:00
pci Drivers: media: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
platform ARM: arm-soc: Fixes for 3.8-rc, take 2 2013-01-24 12:42:50 -08:00
radio [media] radio: set vfl_dir correctly to fix modulator regression 2013-01-24 18:54:14 -02:00
rc Drivers: media: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
tuners [media] fc2580: write some registers conditionally 2012-11-28 09:47:56 -02:00
usb [media] uvcvideo: Set error_idx properly for S_EXT_CTRLS failures 2013-01-11 13:30:27 -02:00
v4l2-core [media] v4l: vb2: Set data_offset to 0 for single-plane output buffers 2013-01-06 09:19:57 -02:00
Kconfig [media] Kconfig: Fix dependencies for driver autoselect options 2012-10-17 16:45:56 -03:00
Makefile [media] move i2c files into drivers/media/i2c 2012-09-06 18:42:54 -03:00
media-device.c [media] media: fix MEDIA_IOC_DEVICE_INFO return code 2012-08-12 07:57:57 -03:00
media-devnode.c [media] media-devnode: Replace printk with pr_* 2012-09-27 14:19:23 -03:00
media-entity.c [media] media: Add link_validate() op to check links to the sink pad 2012-05-14 08:44:11 -03:00