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linux/drivers/base
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Andy Shevchenko a1d594e6e7 regmap: spi: Fix potential off-by-one when calculating reserved size 
[ Upstream commit d4ea1d504d ]

If we ever meet a hardware that uses weird register bits and padding,
we may end up in off-by-one error since x/8 + y/8 might not be equal
to (x + y)/8 in some cases.

bits    pad   x/8+y/8 (x+y)/8
4..7    0..3    0       0 // x + y from 4 up to 7
4..7    4..7    0       1 // x + y from 8 up to 11
4..7    8..11   1       1 // x + y from 12 up to 15
8..15   0..7    1       1 // x + y from 8 up to 15
8..15   8..15   2       2 // x + y from 16 up to 23

Fix this by using (x+y)/8.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://msgid.link/r/20240605205315.19132-1-andy.shevchenko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-09-08 07:53:10 +02:00
..
firmware_loader firmware_loader: Fix memory leak in firmware upload 2022-09-01 17:47:27 +02:00
power PM: sleep: wakeirq: fix wake irq warning in system suspend 2024-04-03 15:19:30 +02:00
regmap regmap: spi: Fix potential off-by-one when calculating reserved size 2024-09-08 07:53:10 +02:00
test driver core: test_async: fix an error code 2023-09-13 09:42:53 +02:00
arch_numa.c arm64: irq: set the correct node for VMAP stack 2024-02-05 20:12:46 +00:00
arch_topology.c RISC-V Patches for the 6.1 Merge Window, Part 1 2022-10-09 13:24:01 -07:00
attribute_container.c driver core: attribute_container: fix W=1 warnings 2021-05-14 13:37:10 +02:00
auxiliary.c Documentation/auxiliary_bus: Move the text into the code 2021-12-03 16:41:50 +01:00
base.h driver core: remove make_class_name declaration 2022-09-09 10:49:54 +02:00
bus.c driver: base: fix UAF when driver_attach failed 2022-05-19 19:28:42 +02:00
cacheinfo.c drivers: base: cacheinfo: Fix shared_cpu_map changes in event of CPU hotplug 2023-06-09 10:34:17 +02:00
class.c class: fix possible memory leak in __class_register() 2022-12-31 13:32:38 +01:00
component.c drivers: base: component: fix memory leak with using debugfs_lookup() 2023-03-11 13:55:39 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c driver core: Fix uevent_show() vs driver detach race 2024-08-14 13:52:57 +02:00
cpu.c x86/rfds: Mitigate Register File Data Sampling (RFDS) 2024-03-15 10:48:21 -04:00
dd.c driver core: Release all resources during unbind before updating device links 2023-11-28 17:07:13 +00:00
devcoredump.c devcoredump: Send uevent once devcd is ready 2023-12-13 18:39:28 +01:00
devres.c devres: Fix memory leakage caused by driver API devm_free_percpu() 2024-08-03 08:49:39 +02:00
devtmpfs.c devtmpfs: fix the dangling pointer of global devtmpfsd thread 2022-06-27 16:41:13 +02:00
driver.c driver core: fix driver_set_override() issue with empty strings 2022-09-05 13:01:34 +02:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c init: Initialize noop_backing_dev_info early 2022-06-16 10:55:57 +02:00
isa.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
Kconfig devtmpfs: mount with noexec and nosuid 2021-12-30 13:54:42 +01:00
Makefile driver core: Add sysfs support for physical location of a device 2022-04-27 09:51:57 +02:00
map.c driver: base: Prefer unsigned int to bare use of unsigned 2021-07-21 17:30:09 +02:00
memory.c mm/memory_hotplug: add missing mem_hotplug_lock 2024-01-10 17:10:33 +01:00
module.c driver core: Fix uevent_show() vs driver detach race 2024-08-14 13:52:57 +02:00
node.c base/node.c: initialize the accessor list before registering 2024-01-25 15:27:46 -08:00
physical_location.c driver core: location: Free struct acpi_pld_info *pld before return false 2023-03-10 09:33:33 +01:00
physical_location.h driver core: Add sysfs support for physical location of a device 2022-04-27 09:51:57 +02:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c platform-msi: Export symbol platform_msi_create_irq_domain() 2022-09-28 14:21:05 +01:00
platform.c platform: Provide a remove callback that returns no value 2023-05-24 17:32:43 +01:00
property.c device property: Allow const parameter to dev_fwnode() 2024-01-05 15:18:40 +01:00
soc.c base: soc: Make soc_device_match() simpler and easier to read 2022-03-18 14:28:07 +01:00
swnode.c software node: Let args be NULL in software_node_get_reference_args 2024-01-25 15:27:46 -08:00
syscore.c syscore: Use pm_pr_dbg() for syscore_{suspend,resume}() 2020-09-08 13:32:06 +02:00
topology.c drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist 2022-07-15 17:36:33 +02:00
trace.c devres: Enable trace events 2021-06-15 17:14:36 +02:00
trace.h devres: Enable trace events 2021-06-15 17:14:36 +02:00
transport_class.c drivers: base: transport_class: fix resource leak when transport_add_device() fails 2023-03-10 09:33:34 +01:00