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-rw-r--r--drivers/scsi/hosts.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 3690360d7a79..c6457bfc8a49 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -456,6 +456,10 @@ static int __scsi_host_match(struct device *dev, void *data)
*
* Return value:
* A pointer to located Scsi_Host or NULL.
+ *
+ * The caller must do a scsi_host_put() to drop the reference
+ * that scsi_host_get() took. The put_device() below dropped
+ * the reference from class_find_device().
**/
struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
{
@@ -463,9 +467,10 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
struct Scsi_Host *shost = ERR_PTR(-ENXIO);
cdev = class_find_device(&shost_class, &hostnum, __scsi_host_match);
- if (cdev)
+ if (cdev) {
shost = scsi_host_get(class_to_shost(cdev));
-
+ put_device(cdev);
+ }
return shost;
}
EXPORT_SYMBOL(scsi_host_lookup);