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authorMike Christie <michaelc@cs.wisc.edu>2008-06-16 10:11:35 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-12 08:22:30 -0500
commitf80f868ec463b0463b332cdb704fe5438f013f98 (patch)
tree5280f9c355ad08d659bacaaae41da697ddbd7345 /drivers/scsi
parent4c2133c82385c31dd3eed76b07da1e986eb00294 (diff)
[SCSI] iscsi class: fix endpoint leak
class_find_device gets a ref to the device so we must release it. The class will serialize access to the ep so we do not have to worry about a remove racing with the callers access, so we can simplify the use and drop the ref right away. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 8e34f3c0857..3af7cbcc5c5 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -219,6 +219,7 @@ EXPORT_SYMBOL_GPL(iscsi_destroy_endpoint);
struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle)
{
+ struct iscsi_endpoint *ep;
struct device *dev;
dev = class_find_device(&iscsi_endpoint_class, &handle,
@@ -226,7 +227,13 @@ struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle)
if (!dev)
return NULL;
- return iscsi_dev_to_endpoint(dev);
+ ep = iscsi_dev_to_endpoint(dev);
+ /*
+ * we can drop this now because the interface will prevent
+ * removals and lookups from racing.
+ */
+ put_device(dev);
+ return ep;
}
EXPORT_SYMBOL_GPL(iscsi_lookup_endpoint);