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mmc: usdhi6rol0: handle probe deferral for regulator

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We ignore errors from mmc_regulator_get_supply() because the usage of
the regulators is optional for the driver, but we still need to check
for and handle EPROBE_DEFER, like it's done in for example dw_mmc.
Otherwise we might end up not using the specified regulators just
because of probe order.

Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Rabin Vincent 2015-08-19 15:41:34 +02:00 committed by Ulf Hansson
parent da795ec26e
commit 767264725d
1 changed files with 4 additions and 2 deletions
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6
drivers/mmc/host/usdhi6rol0.c
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@ -1715,12 +1715,14 @@ static int usdhi6_probe(struct platform_device *pdev)
if (!mmc)
return -ENOMEM;
ret = mmc_regulator_get_supply(mmc);
if (ret == -EPROBE_DEFER)
goto e_free_mmc;
ret = mmc_of_parse(mmc);
if (ret < 0)
goto e_free_mmc;
mmc_regulator_get_supply(mmc);
host = mmc_priv(mmc);
host->mmc = mmc;
host->wait = USDHI6_WAIT_FOR_REQUEST;