diff options
| author | Maurizio Lombardi <mlombard@redhat.com> | 2017-06-27 09:53:27 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-27 22:07:59 (GMT) |
| commit | 542c097f1cb61f57ad42ffd8431371d69e76aa03 (patch) | |
| tree | 2c4852d3b7fe81af8012bc50df74aeca9c4f784f | |
| parent | d2bb0af4463d0fd094385d8e15f8f18c9adaafa4 (diff) | |
| download | linux-542c097f1cb61f57ad42ffd8431371d69e76aa03.tar.xz | |
scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
commit 62e62ffd95539b9220894a7900a619e0f3ef4756 upstream.
The enclosure_add_device() function should fail if it can't create the
relevant sysfs links.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Tested-by: Douglas Miller <dougmill@linux.vnet.ibm.com>
Acked-by: James Bottomley <jejb@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/enclosure.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c index 65fed71..cc91f7b 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); |