From 54129d641cac77b80f3c868a45cd776d783ca57b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 26 Jan 2019 23:22:33 +0800 Subject: [PATCH] regulator: da9062: Check return value of devm_regmap_field_alloc calls Since devm_regmap_field_alloc can fail, add error checking for it. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/da9062-regulator.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c index 34a70d9..d06e960 100644 --- a/drivers/regulator/da9062-regulator.c +++ b/drivers/regulator/da9062-regulator.c @@ -1029,31 +1029,50 @@ static int da9062_regulator_probe(struct platform_device *pdev) regl->desc.type = REGULATOR_VOLTAGE; regl->desc.owner = THIS_MODULE; - if (regl->info->mode.reg) + if (regl->info->mode.reg) { regl->mode = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->mode); - if (regl->info->suspend.reg) + if (IS_ERR(regl->mode)) + return PTR_ERR(regl->mode); + } + + if (regl->info->suspend.reg) { regl->suspend = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->suspend); - if (regl->info->sleep.reg) + if (IS_ERR(regl->suspend)) + return PTR_ERR(regl->suspend); + } + + if (regl->info->sleep.reg) { regl->sleep = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->sleep); - if (regl->info->suspend_sleep.reg) + if (IS_ERR(regl->sleep)) + return PTR_ERR(regl->sleep); + } + + if (regl->info->suspend_sleep.reg) { regl->suspend_sleep = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->suspend_sleep); - if (regl->info->ilimit.reg) + if (IS_ERR(regl->suspend_sleep)) + return PTR_ERR(regl->suspend_sleep); + } + + if (regl->info->ilimit.reg) { regl->ilimit = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->ilimit); + if (IS_ERR(regl->ilimit)) + return PTR_ERR(regl->ilimit); + } /* Register regulator */ memset(&config, 0, sizeof(config)); -- 2.7.4