From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Tue, 16 Sep 2014 11:04:14 +0000 (+0300)
Subject: regmap: cache: Do not fail silently from regcache_sync calls
X-Git-Tag: fixes-for-v3.18-merge-window~32^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f29a43206ae1adfadbb344f5ef9bc200784f9d61;p=pandora-kernel.git

regmap: cache: Do not fail silently from regcache_sync calls

Call stack of regcache_sync calls may not emit any error message even if
operation was cancelled due an error in I/O driver. One such a silent error
is for instance if I2C bus driver doesn't receive ACK from the I2C device
and returns -EREMOTEIO.

Since many users of regcache_sync() don't check and print the error there is
no any indication that HW registers are potentially out of sync.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

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