According to MMC-3 (or any later versions) READ TOCs are mandatory

commands and have nothing to do with CDC_PLAY_AUDIO.  I have no idea

why the check was put there in the first place but it now only breaks

automatic actions on certain drives.
Note that this test was only effective when ide-cdrom was being used

as sr didn't mask CDC_PLAY_AUDIO according to the capabilities.
Signed-off-by: Tejun Heo <tj@kernel.org>

---

 drivers/cdrom/cdrom.c |    4 ----

 1 file changed, 4 deletions(-)
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c

index 69f26eb..11574c5 100644

--- a/drivers/cdrom/cdrom.c

+++ b/drivers/cdrom/cdrom.c

@@ -1491,10 +1491,6 @@ static void cdrom_count_tracks(struct cdrom_device_info *cdi, tracktype* tracks)

 	tracks->xa=0;

 	tracks->error=0;

 	cdinfo(CD_COUNT_TRACKS, "entering cdrom_count_tracks\n");

-        if (!CDROM_CAN(CDC_PLAY_AUDIO)) {

-                tracks->error=CDS_NO_INFO;

-                return;

-        }

 	/* Grab the TOC header so we can see how many tracks there are */

 	if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header))) {

 		if (ret == -ENOMEDIUM)

--

--

--

Jens Axboe
--