paride: Convert to bdops->check_events()

Convert paride drivers from ->media_changed() to ->check_events().

pcd and pd buffer and clear events after reporting; however, pf
unconditionally reports MEDIA_CHANGE and will 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>
Cc: Tim Waugh <tim@cyberelk.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index c0ee1558b9bb..21dfdb776869 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -794,7 +794,7 @@ static int pd_release(struct gendisk *p, fmode_t mode)
         return 0;
 }
 
-static int pd_check_media(struct gendisk *p)
+static unsigned int pd_check_events(struct gendisk *p, unsigned int clearing)
 {
         struct pd_unit *disk = p->private_data;
         int r;
@@ -803,7 +803,7 @@ static int pd_check_media(struct gendisk *p)
         pd_special_command(disk, pd_media_check);
         r = disk->changed;
         disk->changed = 0;
-        return r;
+        return r ? DISK_EVENT_MEDIA_CHANGE : 0;
 }
 
 static int pd_revalidate(struct gendisk *p)
@@ -822,7 +822,7 @@ static const struct block_device_operations pd_fops = {
         .release        = pd_release,
         .ioctl          = pd_ioctl,
         .getgeo         = pd_getgeo,
-        .media_changed  = pd_check_media,
+        .check_events   = pd_check_events,
         .revalidate_disk= pd_revalidate
 };
 
@@ -837,6 +837,7 @@ static void pd_probe_drive(struct pd_unit *disk)
         p->fops = &pd_fops;
         p->major = major;
         p->first_minor = (disk - pd) << PD_BITS;
+        p->events = DISK_EVENT_MEDIA_CHANGE;
         disk->gd = p;
         p->private_data = disk;
         p->queue = pd_queue;