Vaibhav Jain 5fc8d62d19 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 14:22:08 +01:00

..

api.c

cxl: Fix driver use count

2017-10-05 09:41:47 +02:00

base.c

cxl: Move include file cxl.h -> cxl-base.h

2015-06-03 13:27:19 +10:00

context.c

cxl: Fix DSI misses when the context owning task exits

2016-09-15 08:27:41 +02:00

cxl.h

cxl: Fix DSI misses when the context owning task exits

2016-09-15 08:27:41 +02:00

debugfs.c

cxl: sparse: Silence iomem warning in debugfs file creation

2015-08-12 14:49:29 +10:00

fault.c

cxl: Fix DSI misses when the context owning task exits

2016-09-15 08:27:41 +02:00

file.c

cxl: Fix driver use count

2017-10-05 09:41:47 +02:00

irq.c

cxl: Keep IRQ mappings on context teardown

2016-05-04 14:48:48 -07:00

Kconfig

cxl: Add CONFIG_CXL_EEH symbol

2015-08-17 13:56:29 +10:00

main.c

cxl: Destroy cxl_adapter_idr on module_exit

2015-07-16 14:14:55 +10:00

Makefile

cxl: fix build for GCC 4.6.x

2016-09-15 08:27:41 +02:00

native.c

cxl: Set endianess of kernel contexts

2015-12-08 16:57:01 +11:00

pci.c

cxl: Check if vphb exists before iterating over AFU devices

2017-12-25 14:22:08 +01:00

sysfs.c

cxl: Fix lockdep warning while creating afu_err_buff attribute

2015-09-23 20:57:13 +10:00

trace.c

cxl: Add tracepoints

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

trace.h

cxl: use more common format specifier

2015-07-13 10:10:54 +10:00

vphb.c

cxl: use correct operator when writing pcie config space values

2016-03-03 15:07:17 -08:00