Vaibhav Jain 12841f87b7 cxl: Check if vphb exists before iterating over AFU devices ...

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: 9e8df8a21963 ("cxl: EEH support")
Cc: stable@vger.kernel.org # v4.3+
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>

2017-11-23 23:08:34 +11:00

..

api.c

cxl: Enable global TLBIs for cxl contexts

2017-09-28 17:09:16 +10:00

base.c

cxl: Add support for interrupts on the Mellanox CX4

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

context.c

cxl: Enable global TLBIs for cxl contexts

2017-09-28 17:09:16 +10:00

cxl.h

cxl: Rework the implementation of cxl_stop_trace_psl9()

2017-11-06 16:48:17 +11:00

cxllib.c

cxl: Fix memory page not handled

2017-09-29 14:19:44 +10:00

debugfs.c

cxl: Rework the implementation of cxl_stop_trace_psl9()

2017-11-06 16:48:17 +11:00

fault.c

cxl: Add support for POWER9 DD2

2017-10-06 20:52:43 +11:00

file.c

cxl: Enable global TLBIs for cxl contexts

2017-09-28 17:09:16 +10:00

flash.c

cxl: Unlock on error in probe

2017-06-06 19:23:52 +10:00

guest.c

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

hcalls.c

cxl: Remove unused values in bare-metal environment.

2017-04-13 23:34:28 +10:00

hcalls.h

cxl: Add guest-specific code

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

irq.c

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

Kconfig

cxl: Export library to support IBM XSL

2017-07-03 23:07:03 +10:00

main.c

cxl: Fixes for Coherent Accelerator Interface Architecture 2.0

2017-06-23 16:26:23 +10:00

Makefile

cxl: Export library to support IBM XSL

2017-07-03 23:07:03 +10:00

native.c

cxl: Dump PSL_FIR register on PSL9 error irq

2017-10-13 19:41:57 +11:00

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

2017-11-23 23:08:34 +11:00

phb.c

cxl: Fix error handling in _cxl_pci_associate_default_context()

2016-11-18 22:41:08 +11:00

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 psl9 specific code

2017-04-13 23:34:31 +10:00

vphb.c

cxl: fix nested locking hang during EEH hotplug

2017-02-21 21:32:52 +11:00