From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ 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: 4dc5a79f1350 ("mmc: mxs-mmc: enable regulator for mmc slot") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/4aadb3c97835f7b80f00819c3d549e6130384e67.163436515... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/mxs-mmc.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 947581de78601..8c3655d3be961 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -552,6 +552,11 @@ 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) { struct device_node *np = pdev->dev.of_node; @@ -591,6 +596,11 @@ 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);