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linux/drivers/base/regmap
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Kaushlendra Kumar 811b45e2d7 regmap: maple: free entry on mas_store_gfp() failure 
[ Upstream commit f3f380ce6b ]

regcache_maple_write() allocates a new block ('entry') to merge
adjacent ranges and then stores it with mas_store_gfp().
When mas_store_gfp() fails, the new 'entry' remains allocated and
is never freed, leaking memory.

Free 'entry' on the failure path; on success continue freeing the
replaced neighbor blocks ('lower', 'upper').

Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Link: https://patch.msgid.link/20260105031820.260119-1-kaushlendra.kumar@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-02-11 13:40:23 +01:00
..
internal.h regmap: maple: Provide lockdep (sub)class for maple tree's internal lock 2024-12-14 20:03:40 +01:00
Kconfig regmap: Provide user selectable option to enable regmap 2023-07-13 16:20:28 +01:00
Makefile regmap: Provide a ram backed regmap with raw support 2023-06-12 14:47:54 +01:00
regcache-flat.c regcache: use map->alloc_flags also for allocating cache 2024-08-28 13:52:29 +01:00
regcache-maple.c regmap: maple: free entry on mas_store_gfp() failure 2026-02-11 13:40:23 +01:00
regcache-rbtree.c regcache: use map->alloc_flags also for allocating cache 2024-08-28 13:52:29 +01:00
regcache.c regmap: Hold the regmap lock when allocating and freeing the cache 2024-08-23 11:03:11 +01:00
regmap-ac97.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-debugfs.c mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER 2024-01-08 15:27:15 -08:00
regmap-fsi.c regmap: Add FSI bus support 2022-11-25 19:17:02 +00:00
regmap-i2c.c regmap-i2c: add missing MODULE_DESCRIPTION() macro 2024-06-14 15:23:14 +01:00
regmap-i3c.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-irq.c regmap-irq: Add missing kfree() 2025-02-21 14:01:37 +01:00
regmap-kunit.c regmap: kunit: Add coverage of spinlocked regmaps 2024-09-02 12:56:16 +01:00
regmap-mdio.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-mmio.c regmap: mmio: Remove unused 64-bit support code 2023-07-09 22:48:46 +01:00
regmap-ram.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-raw-ram.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-sccb.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-sdw-mbq.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-sdw.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-slimbus.c regmap: slimbus: fix bus_context pointer in regmap init calls 2025-11-13 15:34:00 -05:00
regmap-spi-avmm.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-spi.c regmap: spi: Fix potential off-by-one when calculating reserved size 2024-06-05 22:23:52 +01:00
regmap-spmi.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap-w1.c regmap: add missing MODULE_DESCRIPTION() macros 2024-06-24 13:38:40 +01:00
regmap.c regmap: Fix race condition in hwspinlock irqsave routine 2026-01-30 10:28:41 +01:00
trace.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00