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| author | bui duc phuc <phucduc.bui@gmail.com> | 2026-07-20 10:32:38 +0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-07-20 18:45:14 +0100 |
| commit | afc8e3ee83078eb5dab5a9ea561cdb0008f64f5d (patch) | |
| tree | 7f6b034d0ded6240fc6f9771f83337729221ca67 /drivers/base | |
| parent | 86fc3483a4d60f575533d1d5542bacca2a25ddc7 (diff) | |
| download | linux-afc8e3ee83078eb5dab5a9ea561cdb0008f64f5d.tar.gz linux-afc8e3ee83078eb5dab5a9ea561cdb0008f64f5d.zip | |
regcache: Validate cache_only state in regcache_sync_region()
Add a WARN_ON() check to ensure regcache_sync_region() is not called
while cache_only is enabled.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260720033238.52479-2-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regcache.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 29a9fda41c44..0e3b6942640c 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -516,6 +516,10 @@ int regcache_sync_region(struct regmap *map, unsigned int min, map->lock(map->lock_arg); + if (WARN_ON(map->cache_only)) { + map->unlock(map->lock_arg); + return -EINVAL; + } /* Remember the initial bypass state */ bypass = map->cache_bypass; |