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mmc: mxs-mmc: disable regulator on error and in the remove function

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[ Upstream commit ce5f6c2c9b0fcb4094f8e162cfd37fb4294204f7 ]

The 'reg_vmmc' regulator is enabled in the probe. It is never disabled.
Neither in the error handling path of the probe nor in the remove
function.

Register a devm_action to disable it when needed.

Fixes: 4dc5a79f13 ("mmc: mxs-mmc: enable regulator for mmc slot")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/4aadb3c97835f7b80f00819c3d549e6130384e67.1634365151.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2021-10-16 08:21:44 +02:00 committed by Greg Kroah-Hartman
parent 7c1c7ac9d1
commit 25c032c585
1 changed files with 10 additions and 0 deletions
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10
drivers/mmc/host/mxs-mmc.c
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@ -565,6 +565,11 @@ static const struct of_device_id mxs_mmc_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, mxs_mmc_dt_ids);
static void mxs_mmc_regulator_disable(void *regulator)
{
regulator_disable(regulator);
}
static int mxs_mmc_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
@ -606,6 +611,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
"Failed to enable vmmc regulator: %d\n", ret);
goto out_mmc_free;
}
ret = devm_add_action_or_reset(&pdev->dev, mxs_mmc_regulator_disable,
reg_vmmc);
if (ret)
goto out_mmc_free;
}
ssp->clk = devm_clk_get(&pdev->dev, NULL);