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Subject[PATCH] regmap: Handle sparse caches in the default sync
If there is no cache entry available we will get -ENOENT from the cache
implementation, handle this gracefully and skip rather than treating it as
an error.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
drivers/base/regmap/regcache.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 362e043e26d8..c1b020c5a6a9 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -311,6 +311,8 @@ static int regcache_default_sync(struct regmap *map, unsigned int min,
continue;

ret = regcache_read(map, reg, &val);
+ if (ret == -ENOENT)
+ continue;
if (ret)
return ret;

---
base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65
change-id: 20230325-regcache-sparse-sync-5d4c939a79b3
Best regards,
--
Mark Brown <broonie@kernel.org>

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