When expanding a cache block we use krealloc() to resize the register
present bitmap without initialising the newly allocated data (the
original code was written for kzalloc()). Add an appropraite memset()
to fix that.
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Merge tag 'regmap-fix-v4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"regmap: Fix handling of present bits on rbtree cache block resize
When expanding a cache block we use krealloc() to resize the register
present bitmap without initialising the newly allocated data (the
original code was written for kzalloc()). Add an appropraite memset()
to fix that"
* tag 'regmap-fix-v4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: regcache-rbtree: Clean new present bits on present bitmap resize
cec45d901e