mfd: stw481x: Check the return value of devm_regmap_init_i2c

devm_regmap_init_i2c can fail. Check for it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/mfd/stw481x.c b/drivers/mfd/stw481x.c
index cc42f88586f6..7ceb3df09e25 100644
--- a/drivers/mfd/stw481x.c
+++ b/drivers/mfd/stw481x.c
@@ -186,6 +186,12 @@ static int stw481x_probe(struct i2c_client *client,
         i2c_set_clientdata(client, stw481x);
         stw481x->client = client;
         stw481x->map = devm_regmap_init_i2c(client, &stw481x_regmap_config);
+        if (IS_ERR(stw481x->map)) {
+                ret = PTR_ERR(stw481x->map);
+                dev_err(&client->dev, "Failed to allocate register map: %d\n",
+                        ret);
+                return ret;
+        }
 
         ret = stw481x_startup(stw481x);
         if (ret) {