PCI: Allow release of resources that were never assigned
authorChristian König <ckoenig.leichtzumerken@gmail.com>
Mon, 26 Feb 2018 20:51:13 +0000 (14:51 -0600)
committerBjorn Helgaas <helgaas@kernel.org>
Mon, 26 Feb 2018 20:51:13 +0000 (14:51 -0600)
commitc37406e05d1e541df40b8b81c4bd40753fcaf414
tree80e17f2555b2ca4b030a76a1708af54b5d59d5b7
parent6d516d6798cdfc073aa2fa11dd5a5d72f3906ae5
PCI: Allow release of resources that were never assigned

It is entirely possible that the BIOS wasn't able to assign resources to a
device. In this case don't crash in pci_release_resource() when we try to
resize the resource.

Fixes: 8bb705e3e79d ("PCI: Add pci_resize_resource() for resizing BARs")
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
CC: stable@vger.kernel.org # v4.15+
drivers/pci/setup-res.c