[media] hdpvr: improve error handling
authorHans Verkuil <hans.verkuil@cisco.com>
Wed, 29 May 2013 06:55:15 +0000 (03:55 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Thu, 13 Jun 2013 14:35:47 +0000 (11:35 -0300)
commit5f454d82e5958e59c16580b9b4531f4bbc7231f7
tree323852d98e5d31124955295f508e2c815941cbbe
parent79f10b625e5eff93c8fad54ba345e5f35feb8461
[media] hdpvr: improve error handling

get_video_info() should never return EFAULT, instead it should return
the low-level usb_control_msg() error. Add a valid field to the hdpvr_video_info
struct so the driver can easily check if a valid format was detected.
Whenever get_video_info is called and it returns an error (e.g. usb_control_msg
failed), then return that error to userspace as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/usb/hdpvr/hdpvr-control.c
drivers/media/usb/hdpvr/hdpvr-video.c
drivers/media/usb/hdpvr/hdpvr.h