AuxXxilium/linux_dsm_epyc7002
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1b15a5632a
linux_dsm_epyc7002/drivers/bus
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John Garry 1b15a5632a bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free 
If, after registering a logical PIO range, the driver probe later fails,
the logical PIO range memory will be released automatically.

This causes an issue, in that the logical PIO range is not unregistered
and the released range memory may be later referenced.

Fix by unregistering the logical PIO range.

And since we now unregister the logical PIO range for probe failure, avoid
the special ordering of setting logical PIO range ops, which was the
previous (poor) attempt at a safeguard against this.

Cc: stable@vger.kernel.org
Fixes: adf38bb0b5 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13 14:54:28 +08:00
..
fsl-mc bus: mc-bus: Add support for mapping shareable portals 2019-05-20 14:28:16 -05:00
arm-cci.c bus: arm-cci: remove unnecessary unreachable() 2018-05-14 01:22:49 -07:00
brcmstb_gisb.c This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes 2019-06-17 04:52:52 -07:00
da8xx-mstpri.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
hisi_lpc.c bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free 2019-08-13 14:54:28 +08:00
imx-weim.c bus: imx-weim: guard against timing configuration conflicts 2019-01-11 15:16:45 +08:00
Kconfig bus: add bus driver for accessing Allwinner A64 DE2 2018-06-28 10:20:19 +02:00
Makefile bus: add bus driver for accessing Allwinner A64 DE2 2018-06-28 10:20:19 +02:00
mips_cdmm.c MIPS/BUS/CDMM: Convert to hotplug state machine 2016-09-06 18:30:25 +02:00
mvebu-mbus.c bus: mvebu-mbus: Convert to using %pOFn instead of device_node.name 2018-09-28 16:41:57 -05:00
omap_l3_noc.c bus: omap: add MODULE_LICENSE tags 2018-01-11 18:02:56 -08:00
omap_l3_noc.h bus: omap_l3_noc: Fix master id address decoding for OMAP5 2015-05-04 10:21:01 -07:00
omap_l3_smx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
omap_l3_smx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
omap-ocp2scp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
qcom-ebi2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
simple-pm-bus.c drivers: bus: Add Simple Power-Managed Bus Driver 2015-02-24 06:36:18 +09:00
sun50i-de2.c bus: add bus driver for accessing Allwinner A64 DE2 2018-06-28 10:20:19 +02:00
sunxi-rsb.c sunxi-rsb: Include OF based modalias in device uevent 2017-12-05 09:14:30 +01:00
tegra-aconnect.c bus: tegra-aconnect: add system sleep callbacks 2019-03-28 17:26:14 +01:00
tegra-gmi.c bus: Add support for Tegra Generic Memory Interface 2016-11-15 17:27:53 +01:00
ti-sysc.c bus: ti-sysc: Add support for module specific reset quirks 2019-06-10 04:52:22 -07:00
ts-nbus.c gpiolib: Pass array info to get/set array functions 2018-09-13 11:16:54 +02:00
uniphier-system-bus.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
vexpress-config.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00