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author | Steve Twiss <stwiss.opensource@diasemi.com> | 2019-02-26 18:42:50 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-31 16:43:56 +0300 |
commit | dc7faebca876740aaacc706249dd73a41d1bb6fc (patch) | |
tree | 6ec0ec02297734b70e2cdcbe2e2a3939b5a8e65b /drivers/spi | |
parent | 88b8cf5c24d50dca9e95631d9a843b5a0cffff58 (diff) | |
download | linux-dc7faebca876740aaacc706249dd73a41d1bb6fc.tar.xz |
regulator: pv88060: Fix notifier mutex lock warning
[ Upstream commit f58213637206e190453e3bd91f98f535566290a3 ]
The mutex for the regulator_dev must be controlled by the caller of
the regulator_notifier_call_chain(), as described in the comment
for that function.
Failure to mutex lock and unlock surrounding the notifier call results
in a kernel WARN_ON_ONCE() which will dump a backtrace for the
regulator_notifier_call_chain() when that function call is first made.
The mutex can be controlled using the regulator_lock/unlock() API.
Fixes: f307a7e9b7af ("regulator: pv88060: new regulator driver")
Suggested-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/spi')
0 files changed, 0 insertions, 0 deletions