[PATCH v1 0/3] regcache: Avoid accessing non-initialised cache

From: Andy Shevchenko

Date: Tue Feb 10 2026 - 11:11:45 EST


FIXME cover letter

Some caches may not allow writes before full initialisation is done.
In particular on REGMAP_MAPLE caches when we want to populate cache
with the values (reg_defaults_raw == NULL && num_reg_defaults_raw != 0)
from HW, the NULL pointer dereference may happen. Address this by moving
the IO after cache initialisation is done.

Andy Shevchenko (3):
regcache: Remove duplicate check in regcache_hw_init()
regcache: Split regcache_count_cacheable_registers() helper
regcache: Move HW readback after cache initialisation

drivers/base/regmap/regcache.c | 44 ++++++++++++++++++++--------------
1 file changed, 26 insertions(+), 18 deletions(-)

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2.50.1