From: Ashay Jaiswal Date: Thu, 8 Jan 2015 13:24:25 +0000 (+0530) Subject: regulator: core: fix race condition in regulator_put() X-Git-Tag: fixes-v4.0-rc1~240^2~1^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83b0302d347a49f951e904184afe57ac3723476e;p=pandora-kernel.git regulator: core: fix race condition in regulator_put() The regulator framework maintains a list of consumer regulators for a regulator device and protects it from concurrent access using the regulator device's mutex lock. In the case of regulator_put() the consumer is removed and regulator device's parameters are updated without holding the regulator device's mutex. This would lead to a race condition between the regulator_put() and any function which traverses the consumer list or modifies regulator device's parameters. Fix this race condition by holding the regulator device's mutex in case of regulator_put. Signed-off-by: Ashay Jaiswal Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- Reading git-diff-tree failed