From 2af8cb8b1e0d9140ef403eb6d3a3fa7774f1b62c Mon Sep 17 00:00:00 2001 From: Maurizio Lombardi Date: Tue, 27 Jun 2017 11:53:27 +0200 Subject: 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 Tested-by: Douglas Miller Acked-by: James Bottomley Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/misc/enclosure.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers/misc/enclosure.c') diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c index 2cf2bbc0b927..6cab9411b158 100644 --- a/drivers/misc/enclosure.c +++ b/drivers/misc/enclosure.c @@ -320,6 +320,7 @@ 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; @@ -329,12 +330,17 @@ 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); -- cgit v1.2.3