Messages in this thread Patch in this message | | | From | Charles Keepax <> | Subject | [PATCH] mfd: arizona: Add comment to explain non-devm regulator_get | Date | Thu, 19 Jun 2014 16:04:23 +0100 |
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To avoid someone attempting to change this regulator_get back into a devm_regulator_get put a comment in explaining that devres can't be used here as the regulator will be destroyed before devres calls regulator_put.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> --- drivers/mfd/arizona-core.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 27936fe..b4f22e7 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -683,6 +683,12 @@ int arizona_dev_init(struct arizona *arizona) goto err_early; } + /** + * Don't use devres here because the only device we have to get + * against is the MFD device and DCVDD will likely be supplied by + * one of its children. Meaning that the regulator will be + * destroyed by the time devres calls regulator put. + */ arizona->dcvdd = regulator_get(arizona->dev, "DCVDD"); if (IS_ERR(arizona->dcvdd)) { ret = PTR_ERR(arizona->dcvdd); -- 1.7.2.5
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