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| author | Mike Christie <michaelc@cs.wisc.edu> | 2008-06-16 19:11:35 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 17:22:30 +0400 |
| commit | f80f868ec463b0463b332cdb704fe5438f013f98 (patch) | |
| tree | 5280f9c355ad08d659bacaaae41da697ddbd7345 /drivers/scsi/scsi_transport_iscsi.c | |
| parent | 4c2133c82385c31dd3eed76b07da1e986eb00294 (diff) | |
| download | linux-f80f868ec463b0463b332cdb704fe5438f013f98.tar.xz | |
[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/scsi_transport_iscsi.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 8e34f3c08575..3af7cbcc5c5d 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); |