mfd: Add missing out of memory check for pcf50633

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44561
Reported-by: <rucsoftsec@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 29c122b..45ce1fb 100644 (file)
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -253,8 +253,13 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
                }
 
                pdev->dev.parent = pcf->dev;
-               platform_device_add_data(pdev, &pdata->reg_init_data[i],
-                                       sizeof(pdata->reg_init_data[i]));
+               if (platform_device_add_data(pdev, &pdata->reg_init_data[i],
+                                       sizeof(pdata->reg_init_data[i])) < 0) {
+                       platform_device_put(pdev);
+                       dev_err(pcf->dev, "Out of memory for regulator parameters %d\n",
+                                                                       i);
+                       continue;
+               }
                pcf->regulator_pdev[i] = pdev;
 
                platform_device_add(pdev);