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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-03 21:57:37 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-03 21:57:37 +0300 |
| commit | cdcb5d194f192ed07f4e4bb85b866cdc8f420ee6 (patch) | |
| tree | 15bafb9f37dccd10a9ac6078ae6dc671628aaba5 /drivers | |
| parent | 5e62ed3b1c8a397185af53d6b94f04b9ff21ec7d (diff) | |
| parent | 7a795ac8d49e2433e1b97caf5e99129daf8e1b08 (diff) | |
| download | linux-cdcb5d194f192ed07f4e4bb85b866cdc8f420ee6.tar.xz | |
Merge tag 'regmap-fix-v6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"A fix for a long standing issue where when we create a new node in an
rbtree register cache we were failing to convert the register address
of the new register into a bitmask correctly and marking the wrong
register as being present in the newly created node.
This would only have affected devices with a register stride other
than 1 but would corrupt data on those devices"
* tag 'regmap-fix-v6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: rbtree: Fix wrong register marked as in-cache when creating new node
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index db716ffd083e..3db88bbcae0f 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -453,7 +453,8 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, if (!rbnode) return -ENOMEM; regcache_rbtree_set_register(map, rbnode, - reg - rbnode->base_reg, value); + (reg - rbnode->base_reg) / map->reg_stride, + value); regcache_rbtree_insert(map, &rbtree_ctx->root, rbnode); rbtree_ctx->cached_rbnode = rbnode; } |