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-rw-r--r--drivers/misc/enclosure.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 850706a5e55..7b039306037 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -315,6 +315,9 @@ int enclosure_add_device(struct enclosure_device *edev, int component,
cdev = &edev->component[component];
+ if (cdev->dev == dev)
+ return -EEXIST;
+
if (cdev->dev)
enclosure_remove_links(cdev);