scsi: hpsa: disable device during shutdown
authorSinan Kaya <okaya@codeaurora.org>
Sat, 2 Jun 2018 04:28:53 +0000 (00:28 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 3 Jul 2018 09:24:57 +0000 (11:24 +0200)
commit2829829c3e61b8ff7245345613f10344e1bf3d22
tree6015e1bdcc3c91909f8b4197d95f112d9191c53c
parent2d329968a883f4b64758df6a6c972a02392b3a24
scsi: hpsa: disable device during shutdown

commit 0d98ba8d70b0070ac117452ea0b663e26bbf46bf upstream.

'Commit cc27b735ad3a ("PCI/portdrv: Turn off PCIe services during
shutdown")' has been added to kernel to shutdown pending PCIe port service
interrupts during reboot so that a newly started kexec kernel wouldn't
observe pending interrupts.

pcie_port_device_remove() is disabling the root port and switches by
calling pci_disable_device() after all PCIe service drivers are shutdown.

This has been found to cause crashes on HP DL360 Gen9 machines during
reboot due to hpsa driver not clearing the bus master bit during the
shutdown procedure by calling pci_disable_device().

Disable device as part of the shutdown sequence.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199779
Fixes: cc27b735ad3a ("PCI/portdrv: Turn off PCIe services during shutdown")
Cc: stable@vger.kernel.org
Reported-by: Ryan Finnie <ryan@finnie.org>
Tested-by: Don Brace <don.brace@microsemi.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/scsi/hpsa.c