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android_kernel_oneplus_msm8998/drivers/misc/cxl
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Vaibhav Jain 5fc8d62d19 cxl: Check if vphb exists before iterating over AFU devices 
commit 12841f87b7a8ceb3d54f171660f72a86941bfcb3 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