[PATCH] ses: do not add a device to an enclosure if enclosure_add_links() fails.

[Maurizio Lombardi]

The enclosure_add_device() function should fail if it can't
create the relevant sysfs links.

Signed-off-by: Maurizio Lombardi <mlomb...@redhat.com>
---
 drivers/misc/enclosure.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index d3fe3ea..eb29113 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -375,6 +375,7 @@ int enclosure_add_device(struct enclosure_device *edev, int 
component,
                         struct device *dev)
 {
        struct enclosure_component *cdev;
+       int err;
 
        if (!edev || component >= edev->components)
                return -EINVAL;
@@ -384,12 +385,17 @@ int enclosure_add_device(struct enclosure_device *edev, 
int component,
        if (cdev->dev == dev)
                return -EEXIST;
 
-       if (cdev->dev)
+       if (cdev->dev) {
                enclosure_remove_links(cdev);
-
-       put_device(cdev->dev);
+               put_device(cdev->dev);
+       }
        cdev->dev = get_device(dev);
-       return enclosure_add_links(cdev);
+       err = enclosure_add_links(cdev);
+       if (err) {
+               put_device(cdev->dev);
+               cdev->dev = NULL;
+       }
+       return err;
 }
 EXPORT_SYMBOL_GPL(enclosure_add_device);
 
-- 
Maurizio Lombardi