Vaibhav Jain 76fcdc8cbb cxl: Check if vphb exists before iterating over AFU devices ...

commit 12841f87b7 upstream.

During an eeh a kernel-oops is reported if no vPHB is allocated to the
AFU. This happens as during AFU init, an error in creation of vPHB is
a non-fatal error. Hence afu->phb should always be checked for NULL
before iterating over it for the virtual AFU pci devices.

This patch fixes the kenel-oops by adding a NULL pointer check for
afu->phb before it is dereferenced.

Fixes: 9e8df8a219 ("cxl: EEH support")
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-12-25 14:23:36 +01:00

..

api.c

cxl: Fix driver use count

2017-10-05 09:44:04 +02:00

base.c

cxl: Add support for interrupts on the Mellanox CX4

2016-07-14 20:27:08 +10:00

context.c

cxl: Prevent adapter reset if an active context exists

2016-10-19 20:35:39 +11:00

cxl.h

cxl: fix nested locking hang during EEH hotplug

2017-03-15 10:02:42 +08:00

debugfs.c

cxl: Abstract the differences between the PSL and XSL

2016-06-16 23:08:54 +10:00

fault.c

powerpc/mm: Replace _PAGE_USER with _PAGE_PRIVILEGED

2016-05-01 18:32:26 +10:00

file.c

cxl: Fix driver use count

2017-10-05 09:44:04 +02:00

flash.c

cxl: static-ify variables to fix sparse warnings

2016-06-16 22:49:27 +10:00

guest.c

cxl: Prevent adapter reset if an active context exists

2016-10-19 20:35:39 +11:00

hcalls.c

cxl: Add tracepoints around the cxl hcall

2016-03-09 23:40:01 +11:00

hcalls.h

cxl: Add guest-specific code

2016-03-09 23:36:52 +11:00

irq.c

cxl: Refine slice error debug messages

2016-07-08 22:22:03 +10:00

Kconfig

cxl: remove dead Kconfig options

2016-07-19 20:12:29 +10:00

main.c

cxl: fix nested locking hang during EEH hotplug

2017-03-15 10:02:42 +08:00

Makefile

cxl: Allow a default context to be associated with an external pci_dev

2016-07-14 20:26:52 +10:00

native.c

cxl: Avoid double free_irq() for psl,slice interrupts

2017-06-14 15:06:01 +02:00

of.c

cxl: replace loop with for_each_child_of_node(), remove unneeded of_node_put()

2016-10-04 16:19:23 +11:00

pci.c

cxl: Check if vphb exists before iterating over AFU devices

2017-12-25 14:23:36 +01:00

phb.c

cxl: Allow a default context to be associated with an external pci_dev

2016-07-14 20:26:52 +10:00

sysfs.c

cxl: Prevent adapter reset if an active context exists

2016-10-19 20:35:39 +11:00

trace.c

cxl: Add tracepoints

2015-01-22 17:31:51 +11:00

trace.h

cxl: Add tracepoints around the cxl hcall

2016-03-09 23:40:01 +11:00

vphb.c

cxl: fix nested locking hang during EEH hotplug

2017-03-15 10:02:42 +08:00