From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> [ Upstream commit 3fa9e4cfb55da512ebfd57336fde468830719298 ] If devm_of_platform_populate() fails, some resources need to be released. Introduce a mx25_tsadc_unset_irq() function that undoes mx25_tsadc_setup_irq() and call it both from the new error handling path of the probe and in the remove function. Fixes: a55196eff6d6 ("mfd: fsl-imx25: Use devm_of_platform_populate()") Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Signed-off-by: Lee Jones <lee@xxxxxxxxxx> Link: https://lore.kernel.org/r/d404e04828fc06bcfddf81f9f3e9b4babbe35415.1659269156.git.christophe.jaillet@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/mfd/fsl-imx25-tsadc.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/mfd/fsl-imx25-tsadc.c b/drivers/mfd/fsl-imx25-tsadc.c index 461b0990b56f..5ad721035e49 100644 --- a/drivers/mfd/fsl-imx25-tsadc.c +++ b/drivers/mfd/fsl-imx25-tsadc.c @@ -90,6 +90,19 @@ static int mx25_tsadc_setup_irq(struct platform_device *pdev, return 0; } +static int mx25_tsadc_unset_irq(struct platform_device *pdev) +{ + struct mx25_tsadc *tsadc = platform_get_drvdata(pdev); + int irq = platform_get_irq(pdev, 0); + + if (irq) { + irq_set_chained_handler_and_data(irq, NULL, NULL); + irq_domain_remove(tsadc->domain); + } + + return 0; +} + static void mx25_tsadc_setup_clk(struct platform_device *pdev, struct mx25_tsadc *tsadc) { @@ -177,18 +190,21 @@ static int mx25_tsadc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, tsadc); - return devm_of_platform_populate(dev); + ret = devm_of_platform_populate(dev); + if (ret) + goto err_irq; + + return 0; + +err_irq: + mx25_tsadc_unset_irq(pdev); + + return ret; } static int mx25_tsadc_remove(struct platform_device *pdev) { - struct mx25_tsadc *tsadc = platform_get_drvdata(pdev); - int irq = platform_get_irq(pdev, 0); - - if (irq) { - irq_set_chained_handler_and_data(irq, NULL, NULL); - irq_domain_remove(tsadc->domain); - } + mx25_tsadc_unset_irq(pdev); return 0; } -- 2.35.1