block: make /proc/partitions and /proc/diskstats use class_find_device()
Use the proper class iterator function instead of mucking around in the
internals of the class structures.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/block/genhd.c b/block/genhd.c
index 70f1d70..c13cc77 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -317,17 +317,21 @@
return NULL;
}
+static int find_next(struct device *dev, void *data)
+{
+ if (dev->type == &disk_type)
+ return 1;
+ return 0;
+}
+
static void *part_next(struct seq_file *part, void *v, loff_t *pos)
{
struct gendisk *gp = v;
struct device *dev;
++*pos;
- list_for_each_entry(dev, &gp->dev.node, node) {
- if (&dev->node == &block_class.devices)
- return NULL;
- if (dev->type == &disk_type)
- return dev_to_disk(dev);
- }
+ dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
+ if (dev)
+ return dev_to_disk(dev);
return NULL;
}
@@ -578,12 +582,9 @@
struct device *dev;
++*pos;
- list_for_each_entry(dev, &gp->dev.node, node) {
- if (&dev->node == &block_class.devices)
- return NULL;
- if (dev->type == &disk_type)
- return dev_to_disk(dev);
- }
+ dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
+ if (dev)
+ return dev_to_disk(dev);
return NULL;
}