Commit 5c0ef6d0 authored by Kay Sievers's avatar Kay Sievers Committed by Greg Kroah-Hartman

block: drop references taken by class_find_device()

Otherwise we leak references, which is not a good thing to do.
Signed-off-by: default avatarKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 068281d3
......@@ -313,8 +313,10 @@ static void *part_start(struct seq_file *part, loff_t *pos)
mutex_lock(&block_class_lock);
dev = class_find_device(&block_class, NULL, &k, find_start);
if (dev)
if (dev) {
put_device(dev);
return dev_to_disk(dev);
}
return NULL;
}
......@@ -331,8 +333,10 @@ static void *part_next(struct seq_file *part, void *v, loff_t *pos)
struct device *dev;
++*pos;
dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
if (dev)
if (dev) {
put_device(dev);
return dev_to_disk(dev);
}
return NULL;
}
......@@ -573,8 +577,10 @@ static void *diskstats_start(struct seq_file *part, loff_t *pos)
mutex_lock(&block_class_lock);
dev = class_find_device(&block_class, NULL, &k, find_start);
if (dev)
if (dev) {
put_device(dev);
return dev_to_disk(dev);
}
return NULL;
}
......@@ -585,8 +591,10 @@ static void *diskstats_next(struct seq_file *part, void *v, loff_t *pos)
++*pos;
dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
if (dev)
if (dev) {
put_device(dev);
return dev_to_disk(dev);
}
return NULL;
}
......@@ -714,10 +722,12 @@ dev_t blk_lookup_devt(const char *name, int part)
mutex_lock(&block_class_lock);
find.name = name;
find.part = part;
dev = class_find_device(&block_class, NULL, (void *)&find, match_id);
if (dev)
dev = class_find_device(&block_class, NULL, &find, match_id);
if (dev) {
put_device(dev);
devt = MKDEV(MAJOR(dev->devt),
MINOR(dev->devt) + part);
}
mutex_unlock(&block_class_lock);
return devt;
......
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