[PATCH 1/2] regulator: da9062: Check return value of devm_regmap_field_alloc calls

[Axel Lin]

Since devm_regmap_field_alloc can fail, add error checking for it.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
 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 34a70d9dc450..d06e9600fa18 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));
-- 
2.17.1