cdrom: don't check CDC_PLAY_AUDIO in cdrom_count_tracks()

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>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index a5da356326515c637f7a66ff04c1cd018c828f31..d9d1b65d206c7e13fbcc41133474fec2be27951a 100644 (file)
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -1436,10 +1436,6 @@ 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)