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authorTejun Heo <tj@kernel.org>2011-03-09 19:54:28 +0100
committerTejun Heo <tj@kernel.org>2011-03-09 19:54:28 +0100
commit1c27030bd21e7e2c68ef5be9f28c63778cf4b27f (patch)
tree16308baa3d530d52d517e77e4d9f797647deb2e6 /drivers/cdrom/viocd.c
parent1a8a74f03fcde1725ff26520220f3d21dbd8faa1 (diff)
gdrom,viocd: Convert to bdops->check_events()
Convert gdrom and viocd from ->media_changed() to ->check_events(). It's unclear how the conditions are cleared and it's possible that it may generate spurious events when polled. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Kay Sievers <kay.sievers@vrfy.org>
Diffstat (limited to 'drivers/cdrom/viocd.c')
-rw-r--r--drivers/cdrom/viocd.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index be73a9b493a6..4e874c5fa605 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -186,10 +186,11 @@ static int viocd_blk_ioctl(struct block_device *bdev, fmode_t mode,
return ret;
}
-static int viocd_blk_media_changed(struct gendisk *disk)
+static unsigned int viocd_blk_check_events(struct gendisk *disk,
+ unsigned int clearing)
{
struct disk_info *di = disk->private_data;
- return cdrom_media_changed(&di->viocd_info);
+ return cdrom_check_events(&di->viocd_info, clearing);
}
static const struct block_device_operations viocd_fops = {
@@ -197,7 +198,7 @@ static const struct block_device_operations viocd_fops = {
.open = viocd_blk_open,
.release = viocd_blk_release,
.ioctl = viocd_blk_ioctl,
- .media_changed = viocd_blk_media_changed,
+ .check_events = viocd_blk_check_events,
};
static int viocd_open(struct cdrom_device_info *cdi, int purpose)
@@ -320,7 +321,8 @@ static void do_viocd_request(struct request_queue *q)
}
}
-static int viocd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
+static unsigned int viocd_check_events(struct cdrom_device_info *cdi,
+ unsigned int clearing, int disc_nr)
{
struct viocd_waitevent we;
HvLpEvent_Rc hvrc;
@@ -340,7 +342,7 @@ static int viocd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
if (hvrc != 0) {
pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
(int)hvrc);
- return -EIO;
+ return 0;
}
wait_for_completion(&we.com);
@@ -354,7 +356,7 @@ static int viocd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
return 0;
}
- return we.changed;
+ return we.changed ? DISK_EVENT_MEDIA_CHANGE : 0;
}
static int viocd_lock_door(struct cdrom_device_info *cdi, int locking)
@@ -550,7 +552,7 @@ static int viocd_audio_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
static struct cdrom_device_ops viocd_dops = {
.open = viocd_open,
.release = viocd_release,
- .media_changed = viocd_media_changed,
+ .check_events = viocd_check_events,
.lock_door = viocd_lock_door,
.generic_packet = viocd_packet,
.audio_ioctl = viocd_audio_ioctl,
@@ -624,6 +626,7 @@ static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id)
gendisk->queue = q;
gendisk->fops = &viocd_fops;
gendisk->flags = GENHD_FL_CD|GENHD_FL_REMOVABLE;
+ gendisk->events = DISK_EVENT_MEDIA_CHANGE;
set_capacity(gendisk, 0);
gendisk->private_data = d;
d->viocd_disk = gendisk;