media: dmxdev: fix error code for invalid ioctls
authorMauro Carvalho Chehab <mchehab@s-opensource.com>
Sun, 11 Feb 2018 10:44:21 +0000 (05:44 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 25 May 2018 14:17:55 +0000 (16:17 +0200)
commit07999bccf2e01312bc299c60aca1b18ba83626be
tree313648042ed4c8bf53d7c1e3e989218ee55c23a2
parent7bc147610d1e74ca70ffb8a48d8fc44621bfc760
media: dmxdev: fix error code for invalid ioctls

[ Upstream commit a145f64c6107d3aa5a7cec9f8977d04ac2a896c9 ]

Returning -EINVAL when an ioctl is not implemented is a very
bad idea, as it is hard to distinguish from other error
contitions that an ioctl could lead. Replace it by its
right error code: -ENOTTY.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/dvb-core/dmxdev.c