4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> [ 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@xxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/media/dvb-core/dmxdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/dvb-core/dmxdev.c +++ b/drivers/media/dvb-core/dmxdev.c @@ -1055,7 +1055,7 @@ static int dvb_demux_do_ioctl(struct fil break; default: - ret = -EINVAL; + ret = -ENOTTY; break; } mutex_unlock(&dmxdev->mutex);
